Huawei H13-624_V5.0 Exam Questions Simulate Actual H13-624_V5.0 Exam

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March 31, 2023

H13-624_V5.0 exam dumps questions are designed to simulate the actual exam. This means that you will get a feel for the types of questions you can expect to see on the exam, as well as the format and difficulty level. In addition, HCIP-Storage H13-624_V5.0 dumps are often accompanied by detailed explanations and answers. This means that if you get a question wrong, you can learn from your mistake and understand why the correct answer is the right one. Test free online H13-624_V5.0 exam dumps below.

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1. Which of the following types of files is not recommended for the ASCII transfer mode in the FTP protocol?

*.txt

*.bat

*.cfg

*.bin

2. Which of the following options is incorrect about the description of Bucket?

A bucket is a container for storing objects, which can be regarded as a directory that can be accessed through the network.

Buckets support nesting, thus avoiding non-hierarchical container structures.

Buckets and Containers have similar functions and can be accessed through the network.

Bucket life cycle management refers to the function of automatically deleting objects in the bucket after a certain period of time through configuration rules without client intervention.

3. Which of the following cables does OceanStor V3 18800 products not support?

mini sas cable

sas cable

AOC cable

fc cable

4. Which of the following designs has Huawei distributed storage improved the reliability of the system? (Multiple choice)

Automatic fault detection and automatic data recovery

N+M data protection

Metadata mirroring

Data scrubbing

5. Which of the following paths will Huawei UltraPath test? (Multiple choice)

Failure path

Normal path

Free available paths

High priority path

6. In the Oceanstor 9000 storage system, which of the following system resources can be controlled by the InfoAllocator feature? (Multiple choice)

storage space

User

Number of documents

User Groups

7. A multinational company has a huge business, and customer business data is scattered in multiple locations, and the distance between locations is greater than 1,000 km. The enterprise hopes to centrally manage the backup data of each site, so that users can analyze and mine all the data without affecting the normal business; and if any business site suffers a disaster, the enterprise can take over the business and restore the data. In this case, which disaster recovery and backup solution should the enterprise choose?

Central disaster recovery backup solution, using synchronous remote replication between the business site and the central site

Two-site three-center solution, using asynchronous remote replication between sites

Two-site three-center solution, using synchronous remote replication between sites

Central disaster recovery backup scheme, using asynchronous remote replication between the business site and the central site

8. Which of the following statements about the Oceanstor 9000 InfoLocker feature is incorrect?

WORM files can be modified and deleted

The WORM clock is only allowed to be set once, and it is no longer allowed to be changed after the setting is successful

When a directory is configured as a WORM root directory, all subdirectories, new directories and new files of the directory automatically obtain the WORM attribute of the parent directory

WORM-protected submission only supports automatic submission

9. In traditional data center disaster recovery solutions, usually active-active data centers or ________ disaster recovery solutions are generally used for disaster recovery

10. Compatibility issues need to be considered for file system backup. Which of the following statements is incorrect?

It is necessary to confirm the type and version of the operating system and file system of the backup source.

If the application is not in the backup software compatibility list, the application data can be exported to a file by other means, and then the file can be backed up.

Use the new version to back up the software, if the operating system version is too old, ask for an updated version.

The operating system or application version is too new, you can wait for the backup software version to be updated.

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11. Regarding the data write-through of Huawei Oceanstor v3 smartvirtualization, which of the following statements is correct?

Write-through means that after the data of the application service is written to the heterogeneous storage system, the heterogeneous storage system will return the write result to the host only after the heterogeneous storage system returns the write success

Write-back is more reliable than write-through. It is necessary to write data into heterogeneous arrays to return write success.

Compared with write-back, write-through has higher performance and less impact on the host

12. The data capacity of site A is 2000GB. The data capacity of site B is 3000GB. The data of site B is remotely replicated to site A for storage. Then the back-end storage capacity required by site A is? (The deduplication ratio is 3):

2000G

3000G

9000G

5000G

13. Whether the Huawei Oceanstor 9000 is upgraded online or offline, it has no effect on device management.

TRUE

FALSE

14. In the Simpana backup software, which statement about incremental backup is correct?

Back up data that has changed since the last backup

Backup data that has changed since the last full backup

Full backup of all data

Backup of all data after the initial backup data

15. An enterprise uses Huawei's all-flash storage system to support its main business. In order to reduce the storage pressure caused by duplicate data, the system can perform online deduplication processing on data. The granularity of deduplicated data blocks is ().

16. Compared with ordinary file backup, the components that need to be deployed more when deploying VMware backup are?

VSA

17. Regarding Huawei's hybrid flash memory storage, which of the following statements are correct? (Multiple choice)

Support NFS, CIFS protocol

Support iSCSI, FC protocol

Support HTTP and FTP protocols

Support SAN and NAS integration

18. During the processing of the IO module of Huawei's distributed object service, after the authentication is passed, the OSC calls the Plog Server to process the data.

EC calculations are concurrently written to the Plog Client for persistence.

TRUE

FALSE

19. In Oceanstor v3 storage, which of the following authentication methods does NFS not support?

NIS

LADP

Local authentication

AD domain

20. In Huawei's hybrid flash memory storage series storage system, which of the following is wrong about the relationship between IP drift logical ports?

Multiple bonded ports can be configured on one VLAN

Multiple bonded ports can be configured on one Ethernet port

1 Ethernet port. Multiple VLANs can be configured on it

Multiple logical ports can be configured on one bonded port

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21. An enterprise needs to provide continuous data protection for its real-time transaction business, so it creates a regular HyperCDP plan for the business data LUN. Which of the following configurations can shorten the RPO as much as possible?

Create multiple HyperCDP backups

Set the "fixed period" of the timing plan to 3 seconds

Set the "reserved number" of HyperCDP to 60000

Create HyperCDP at the specified time every day

22. The storage device has two controllers, A and B. If the BBU of controller A fails, which of the following descriptions is correct?

The LUN belonging to Control A will be turned into write-through

The LUN belonging to Control B will be turned into write-through

All LUNs are converted to write-through

All LUNs are not converted to write-through

23. In Oceanstor v3 synchronous remote replication, the master lun and the slave lun can be in the same array

TRUE

FALSE

24. Which of the following is not a component that must be included in the architecture of the NAS system?

Accessible Disk Arrays

File system

Access to the business interface of the file system

FC switch

25. Which statement is correct about the HyperMetro static priority arbitration mode? (Multiple choice)

The static priority mode has higher reliability than the quorum server mode.

When the link between the arrays fails or the non-priority site fails, the LUNs on the priority site continue to provide services, and the LUNs on the non-priority site stop providing services.

When the array at the priority site is actively powered off for maintenance, the array at the non-priority site immediately takes over all active-active services without service interruption.

When the priority site array fails, the non-priority site will automatically take over the active-active business.

26. The built-in script of the disaster recovery management software OceanStor BCManager eReplication supports one-click failure recovery for Oracle and SQL Server applications. Which of the following steps is not included in the one-click failure recovery?

The test application starts successfully

Forcibly switch the replication relationship

Start the disaster recovery application

Mapping LUNs

Resumption of production operations

27. The cascade replication disaster recovery solution establishes a cascade replication relationship for the storage devices used by the business to achieve disaster recovery in the same city + disaster recovery in different places, with little impact on the performance of the production center.

TRUE

FALSE

28. Regarding the cabinet configuration description of Oceanstor 9000’s 10GE networking solution, which of the following statements is incorrect? (Multiple choice)

Nodes are placed first in the cabinet from top to bottom

The management switch is recommended to be placed in the basic cabinet

The back-end service network switch is recommended to be placed in the expansion cabinet

Huawei provides tools to help calculate the power consumption of the system. In actual projects, the total power consumption of each component in the cabinet should be calculated and deployed

29. For the QoS feature of object services, different buckets can be configured for applications with different priorities, and the TPS and bandwidth resource allocation of buckets can be controlled through QoS; different QoS policies can be configured for VIP tenants and ordinary tenants in the same system. To ensure the service quality of high-priority tenants.

TRUE

FALSE

30. Regarding the principle of the Erasure Code N+M redundancy technology implemented in Oceanstor 9000, which item is wrong?

The Oceanstor 9000 system can configure different data protection levels for different directories/files

The data written to the Oceanstor 9000 system will first be divided into chunks according to the size

For every N chunk, calculate the check blocks of M chunks according to the ErasureCode algorithm

The utilization rate of the protected data space is about N/(N+M). The reliability of the data is determined by the value of

The larger the M, the higher the reliability

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31. Which statement is incorrect about Huawei Oceanstor v3 converged storage system?

The san engine and the file engine have independent architectures

Support san and nas at the same time through parallel dual stack

Use the same storage pool technology

The file system can realize data deduplication and compression function

32. In the Huawei Oceanstor 9000 system, which client type is not supported by NFS sharing?

Host name

IP address

Network group

AD domain

33. In order to better use the performance of the storage system, which of the following options are correct? (Multiple choice)

NL-SAS hard drives belong to the capacity layer and are used to store data with the lowest access frequency

The SSD disk belongs to the high-performance layer and is used to store data with high access frequency

NL-SAS hard drives belong to the capacity layer and are used to store data with medium access frequency

SAS hard disk belongs to the high-performance layer and is used to store data with high access frequency

34. Which of the following descriptions about the physical division of Oceanstor 9000 is wrong?

Physical partitioning is an effective means of isolating faults

The failure of certain nodes will reduce the reliability level of data on other nodes in a physical domain with these nodes

Oceanstor 9000 realizes physical division through node pool and classification method

The administrator must add at least 2 storage nodes to a domain

35. During the processing of Huawei's distributed block service IO stack, the block service of the EDS node writes the data into the cache for the write request. The read request is first hit in the Index, and if it does not hit, it is read from the cache.

TRUE

FALSE

36. High-speed Ethernet ports (such as QSFP+) and high-speed cables are used between CE6810-24S20-LI and CE6810-4854Q-EI to implement stacking.

TRUE

FALSE

37. The command to check the status of the controller in the cli management mode of Huawei storage oceanstor is:

show cotrolinfo

show controller general

show sys

show system general

38. Among the following statements about concepts related to HyperReplication features, which options are correct? (Multiple choice)

Synchronization refers to the process of copying data from the slave LUN to the master LUN

Pair refers to the data replication relationship between the primary LUN and the secondary LUN

A consistency group refers to a collection of pairs associated with multiple businesses

Splitting refers to suspending data synchronization from the primary LUN to the secondary LUN

39. In the design of the backup solution, which of the following should be considered? (Multiple choice)

Bandwidth and Network Design

Backup System Migration Design

Data and application recovery strategy design

Capacity and storage strategy design

40. In the backup structure with one main backup domain and multiple branch backup domains, which of the following descriptions is wrong?

Integrate multiple branch backup domains into a main backup domain, and check the operation reports of each backup domain in the main backup domain.

Each branch backup domain operates independently, and the failure of the connection network with the main backup domain will not affect the backup job of the branch backup domain.

The main backup domain actively collects the metadata of each branch backup domain on a regular basis. After the network connection between the branch backup domain and the main backup domain is interrupted and restored, the metadata transmission can be automatically restored.

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41. Creating a consistency group is a necessary step in Huawei's active-standby disaster recovery solution.

TRUE

FALSE

42. In the storage device, the way to realize the RAID function includes which of the following? (Multiple choice)

Hardware RAID

Software RAID

OS RAID

Memory RAID

43. An enterprise has purchased a Huawei distributed storage system, and now needs to plan and deploy the network. Among the following options, which network planes must be planned? (Multiple choice)

Arbitration plane

Business Plane

Copy plane

Storage Plane

44. What kinds of NFS authentication methods are there? (Multiple choice)

Global Authentication

Local Authentication

LDAP authentication

NIS certification

45. The disaster recovery system can copy business data to a local or remote data center for protection. Not all data damage/loss can be recovered. Which of the following data damages cannot be recovered by the disaster recovery system? (Multiple choice)

Hard disk failure

Virus attack

Human error

The business data center is paralyzed

46. An enterprise plans to purchase a set of storage devices, and the business of the enterprise has different requirements on storage performance. Which of the following descriptions is incorrect when planning and designing hard disk selection?

It is recommended to use SS hard disk for the high-performance layer

The capacity layer adopts SATA HDD hard disk

The performance layer adopts SAS hard disk

Enterprises have different requirements for storage performance. Considering the cost, it is recommended to use tiered storage

47. Which of the following descriptions about distributed storage is correct? (Multiple choice)

Can support large-scale horizontal expansion

Expand capacity in units of nodes, and the computing power and storage space will increase synchronously

Does not support elastic EC data redundancy protection

Realize storage posture source pooling and virtualization

48. The following describes the characteristics of which backup network

1 Occupies a large existing network bandwidth.

2 Backup performance is limited.

3 has a certain impact on the host application.

LAN-Base

LAN-Free

Server-Less

Server-Free

49. Which of the following belongs to the application of unstructured data:

Enterprise ERP

Medical HIS database

Educational Video on Demand

Enterprise financial system

50. The Huawei Oceanstor 9000 FRU replacement tool does not support the replacement of which of the following modules or devices?

Power module

Replace hard disk online c. cable

IO module

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51. Which of the following data can be exported through DeviceManageri? (Multiple choice)

System log

Hard disk log

Configuration information

Diagnostic files

52. When configuring nfs file sharing for Oceanstor v3 storage series products, which of the following options is not a nfs configuration item?

NFS

LDAP

Local User Groups

53. Which of the following is the maintenance software supported by Huawei Oceanstor v3 series storage products?

Oceanstor esdk

Oceanstor replication director

Oceanstor toolkit

Oceanstor ultrapath

54. In the scenario of deploying FusionStorage file service, the customer has deployed 10 FusionStorage nodes and two management network switches. At this time, the number of IP addresses that need to be allocated for the management network is:

55. In the application scenario of data backup, which of the following descriptions about optical disc storage media is wrong?

Applicable to scenarios that do not require high backup speed.

Applicable to scenarios that require high backup capacity.

It is suitable for backup scenarios that do not require frequent erasing.

Data can be stored for a long time.

56. The evolution route of big data technology is from distributed storage to cloud storage, from intelligent analysis to distributed analysis.

TRUE

FALSE

57. InfoReplicator supports splitting pairs, that is, temporarily suspends data synchronization between master and slave directories. If the user wants to restore the data synchronization of the Pair and keep the data in the master and slave directories consistent again, he only needs to manually create a new Pair.

TRUE

FALSE

58. A certain storage device adopts the data protection method of RAID 6 DP, so which of the following statements are correct? (Multiple choice)

A maximum of three hard disk failures can be tolerated

Storage performance will be affected by DP data protection

The calculation of the check digit adopts XOR calculation

There are two independent checksum data blocks in DP mode

59. Which of the following options is wrong about the AK/SK authentication process?

After OceanStor9000 retrieves the SK, it uses the MD5 algorithm to encrypt the Zhang and request content to generate a signature.

When the user initiates a data request, the SK and the request content are encrypted using the IAC algorithm to generate a signature.

After OceanStor9000 receives the request and signature, it will retrieve the SK based on the A

OceanStor9000 will compare the received signature with the signature calculated by the corresponding system. If they are consistent, the authentication will pass.

60. Internet company A uses Huawei's hyper-converged storage to build the company's information platform, which significantly improves the storage space utilization efficiency of the platform. Which of the following options reflect this characteristic? (Multiple choice)

Support deduplication and compression

Support EC

Support active-active

Support asynchronous replication

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61. In a city, if the Municipal Public Security Bureau needs to regularly archive the video surveillance within the jurisdiction of each police station, in such an application scenario, if the solution provided by Oceanstor 9000VIRC30 is used, which node type should the customer recommend?

P12 node

P24 node

P36 node

P72 node

C36 node

62. Which of the following options are issues that need to be considered when planning and configuring storage services? (Multiple choice)

Hot spare disk side rate

RAID strategy

User Rights Policy

Networking strategy

63. In the Huawei Oceanstor v3 worn file system, the file signature mainly verifies the integrity of the file, but when the file is migrated, the fingerprint information cannot be migrated along with the file, and the fingerprint information needs to be calculated after the file migration is completed.

TRUE

FALSE

64. SmartMigration can completely migrate the business on the source LUN to the target LUN only when the host business is stopped.

TRUE

FALSE

65. When configuring the active-active working mode, if load balancing within the array is used, the command set hypermetro working mode=___________array_id=IDo can be used

66. Taking Huawei OceanStor distributed storage as an example, which options are correct for the description of the storage interface layer in the software architecture? (Multiple choice)

Support SCS and liSCSI interface protocols

Support S3 and Swift protocols

Support HDFS protocol

Support IB protocol

67. Which of the following statements about N8500CIFS sharing is correct? (Multiple choice)

If you do not need to distinguish users who restrict access to the shared directory, you can choose normal sharing

If you do not need to distinguish users who restrict access to the shared directory, you can choose homeedir share

In normal mode, the client can only access the share through one VIP

Compared with the normal mode, the data reliability of the cluster mode is higher, but the performance is lower

68. In a large and medium-sized database application, files such as data, logs, and modification records are stored in associated LUN1, LUN2, and LUN3, and remote copy tasks 1, 2, and 3 are created respectively, and the engineer remotely copies these three tasks are added to the consistency group. In this case, which of the following statements are correct? (Multiple choice)

If remote replication task 2 fails during data synchronization, the consistency group will immediately stop remote replication tasks 1 and 3

These three sets of remote replications can only be added to the consistency group in the primary storage system, and all remote replication slave LUNs must be located in the same remote storage system

If the remote replication task 2 fails during the data synchronization process, the consistency group will continue to complete the remote replication tasks 1 and 3, and continue the data synchronization of the remote replication task 2 after the fault is rectified.

When a disaster occurs, use the secondary storage system to restore data, and the data in the database is still valid

69. Which of the following options should be paid attention to when analyzing the requirements of storage projects? (Multiple choice)

Manageability b. cost

Availability d. safety

70. After a failure occurs, it is possible to recover the data in case of system failure or disaster ()

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71. Huawei OceanStor 9000 provides a single file system externally and has a unified file system namespace. Which of the following descriptions about the unified namespace of OceanStor 9000 is incorrect?

The namespace is automatically created when OceanStor 9000 starts, and its name is consistent with the system name

As the root directory of the entire system, the namespace cannot be shared and accessed. Only the subdirectories below it can be shared and accessed.

A unified namespace provides users with a unified storage resource pool to achieve centralized management and allocation of storage space

Each file sharing directory is a subdirectory of the namespace

72. When planning the front-end service network IP address for the C72 node of Huawei Oceanstor 9000, it is necessary to plan 4 static front-end IP addresses for each node.

TRUE

FALSE

73. The customer put forward the requirement of RPO=0 and RTO=0, and the colleague chose the active-standby synchronous remote replication disaster recovery solution. This solution:

Cannot meet customer requirements, RTO>0

Can meet customer requirements.

Cannot meet customer requirements RPO>0

Customer requirements RPO>0 and RTO>0 cannot be met.

74. Which of the following descriptions about the cloud storage system is correct? (Multiple choice)

Huawei's cloud storage system can only provide storage services to Huawei's cloud platform and its users

Huawei's cloud storage system can provide storage services for users of the VMwaxe cloud platform

The OceanStor9000 storage system will also become a part of the cloud storage system in the future

The scalability of OceanStor9000 storage system is better than that of cloud storage system

75. In Huawei Oceanstor 9000, in order to ensure performance and improve hard disk utilization, it is recommended to set the stripe value according to the expected average file size in a directory. Regarding the stripe settings, which one is wrong?

The relationship between redundancy ratio and read/write performance from high to low is: N+1>N+2=N+2: 1>N+3: 1>N+4

Only non-empty directories can modify the redundancy ratio

The relationship between stripe size and read/write performance is: 512KB>256KB>128KB>16KB

The modified stripe size is only effective for the files that have been written, and the existing files before modification still maintain the stripe size before modification

76. When using Huawei’s distributed storage block service, which options are correct for the description of the asynchronous remote replication feature disaster recovery cluster? (Multiple choice)

The disaster recovery cluster has good elastic expansion capability

A single disaster recovery cluster cannot meet the subsequent rapid growth of disaster recovery business needs

Disaster recovery clusters can be deployed on storage nodes or on independent servers

Users can deploy disaster recovery clusters on demand, which are logical objects that provide replication services

77. In Huawei's hybrid flash storage device, the _______ technology can identify hot data and regularly migrate hot data to higher storage media, thereby improving storage performance.

78. OceanStor900 uses general-purpose x86 architecture hardware to deploy Scale-out NAS systems. All nodes realize high concurrency and high performance of the entire system data, mainly relying on three types of networking types: IB, 10GE and PCIE, among which the network performance of PCIE is higher. Well, easier to scale and manage.

TRUE

FALSE

79. Which of the following is not the main function of multi-path software?

Load balancing

failover domain failback

Encrypt data

Shield redundant disks

80. Which of the following scenarios is the SmartCache feature of Huawei's hybrid flash storage most suitable for?

Write random small I/O scenarios

Read random small I/O scenarios

Write sequential I/O scenario

Read sequential I/O scenarios

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81. What are the 4s extended scale technologies supported by Huawei Oceanstor 6800 v3? (Multiple choice)

scale-into

scale-up

scale-out

scale-down

82. Regarding the description of the technical principle of Oceanstor v3 remote replication poisoning dcl small bitmap, which items are incorrect? (Multiple choice)

Small bitmap technology splits a 64kb chunk into smaller 16kb chunks to record differences.

The small bitmap technology can reduce the amount of data replication and the risk of data loss, improve replication performance, and reduce rpo

According to the principle of small bitmap technology, when there are 6 consecutive data with differences that need to be synchronized, the granularity of copying at this time is 4kb

Small bitmap technology can be applied to asynchronous remote replication

83. When maintaining the Huawei Oceanstor 9000 system, it is recommended that the system administrator check the account routinely. The content of the check includes: (Multiple choice)

Routinely check and audit the login and operation logs of various accounts

Routinely check whether the permissions of various accounts are reasonable

Routine checks that temporary accounts have been deleted

84. The administrator of Huawei Oceanstor 9000 DeviceManager can quickly complete the initialization; initialization configuration items include: (Multiple choice)

External FNS server information settings

Super administrator password modification

System time zone and NTP settings

InfoEqualizer (client connection load balancing feature) function setting

Alarm email and SMS notification function setting

85. FusionStorage is divided into business system and management system. The ______ layer of the business system is used for the conversion of logical space and physical space.

86. In the file system, which scenarios will modify the metadata? (Multiple choice)

Delete files (including soft links) or directories

Modify properties

Rename

Create files (including soft links) or directories

87. Dual-controller storage: At present, the dual-controller architecture is mainly used in mainstream low-end storage.

Can be divided into Active-Standby and Active-Active mode

- Active- Standby: Also known as HA (High Availability mode, high availability), that is, only one of the two controllers is working at the same time, and the other is waiting, synchronizing and monitoring. Once the primary controller fails, the standby controller takes over its work immediately. At the same time, in order to prevent split-brain, the backup controller needs to power off or restart the main controller through some mechanism before taking over, release its right to use the bus, and then take over the back-end bus and front-end bus.

- Active-Active: Two controllers are working at the same time, each controller is connected to all back-end buses, and each bus is only managed by one of the controllers. Half the number of buses in the backend is managed by one controller and the other half is managed by another controller. If one controller fails, the other takes over all buses. This method is more efficient than the Active-Standby method.

Understanding of the dual-control storage systems, which is correct? (Multiple choice)

In the active-standby mode, it is not enough for a controller to switch to a lower level.

Compared to the ACTIVE-STANDBY mode, the active-active mode switching is higher when a controller fails

There are two working programs: tiive-standby mode and active-active mode

In Active-standby mode, there is only one controller at a time

88. What is the unit that Huawei Oceanstor 9000 provides for CIFS/NFS/FTP sharing?

Contents

Documentation

User

User Groups

89. Which of the following are Huawei storage solutions? (Multiple choice)

Disaster recovery solution

Backup solution

Archiving solutions

Duplicate the solution

90. Huawei full storage devices, such as OceanStor100D, support which of the following scenarios? (Multiple choice)

Private cloud

Distributed database c. Virtualization

Big data analysis

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91. When dealing with urgent problems, in order to facilitate the location of the problem, you can use some small tools developed by the maintenance personnel at work that do not involve obtaining customer data.

TRUE

FALSE

92. Which one of the following is incorrect when the description about Huawei Oceanstor v3 smarterase technology is incorrect?

When you choose to use the custom destruction method, you can overwrite up to 99 times

When the mirror data is destroyed, every time complete random data is written to the lun, it will trigger a check whether the expected number of times is reached

Support DOD and custom destruction methods, and the default destruction times are 3 times

93. Which of the following options is wrong about the concept description of object storage service (compatible with OpenStack Swift interface)?

Account is the owner and manager of resources. Using Account, you can add, delete, check, and configure attributes for Containers, and you can also upload, download, and query Objects.

Object is an object, that is, data, which can be regarded as a file that can be accessed through the network.

Container supports nesting, thus avoiding the non-hierarchical container structure.

Container is a container for storing objects, which can be regarded as a directory that can be accessed through the network.

94. Which of the following belongs to the scale-out technology of Oceanstor 18500/18800 v3 products?

Use pcie2.0 full switching interconnection

Use pcie3.0 full switching interconnection

Use 10GE full switching interconnection

Use 4GB IB full switching interconnection

95. Before deploying Huawei's active-active solution, the customer's live network information that needs to be collected includes: (Multiple choice)

Physical environment information

Business system

Network information

data volume

96. What is the smallest partition that Huawei Oceanstor v3 smartpartition can set?

64MB

128MB

256MG

512MB

97. smartqos basic Lun. fs, snapshot I/0. __________Scheduling technology and flow control technology to ensure core business

98. Which of the following features of Huawei cloud storage? (Multiple choice)

Deployment is relatively simple for end customers

Smaller investment by end customers

Low network cost for backup to cloud storage

Easy to expand

99. What are the advantages of data parallel deduplication? (Multiple choice)

high performance

High reliability

Large scale

100. Huawei UltaPath provides a variety of load balancing algorithms, which will calculate the overall load data volume based on the block size of each io request, and then perform load balancing algorithm which of the following algorithms?

round-robin

least-into

least-block

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101. Which of the following statements about backup networking LAN-free and Server-free is correct?

Server-free needs to generate a copy during data backup, and the copy will be mounted to the backup server.

Server-free networking can directly back up backup data to backup media.

The LAN-free backup network has no impact on the production host.

The path of LAN-free backup data flow is production storage --> backup server --> backup media.

102. Which of the following scenarios can InfiniBand be applied to? (Multiple choice)

Interconnection between distributed storage nodes

Interconnection between FusionCube devices

Interconnection between storage controllers

Interconnection between subracks with ordinary hard disks

103. There are two kinds of services in the storage system of an Internet company: sequential service A and random service B. These two services often compete for cache resources in the process of reading and writing. Which of the following features can solve this problem?

SmartThin

SmartVirtualization

Smart Partition

SmartTier

104. What professional storage value-added features does the HDFS interface provide for Hadoop business? (Multiple choice)

Remote replication

Snapshot

NDMP backup

HtyperMetro

105. Regarding the remote replication technology of Huawei OceanStor all-flash storage, which of the following options are the features that it can support? (Multiple choice)

Load balancing

Interconnection between high and low

Consistency Groups

Failover

106. In Oceanstor v3 storage, what is the function of configuring the oplock in the cifs share?

Improve access efficiency and cache locally before sending shares

Any update of a directory will be notified to the client using this directory

Shared to all users, no password authentication required

Store access rights settings for all users and user groups

107. The maintenance and management tools required by the Oceanstor 18000 high-end storage system are installed on the svp, so that users can easily complete a complete set of management, configuration, authentication and other tasks locally or remotely

TRUE

FALSE

108. Backup policy management does not include?

Backup time

Backup network

Backup content

Backup target

109. Which statement is correct about the Oceanstor v3 storage system cache read and write strategy?

The read strategy and write strategy can be configured as resident, default, recycling

Recycling strategies are suitable for scenarios with high performance requirements and small data volumes

When selecting a recovery strategy, read or write data is eliminated with the lowest priority

The resident strategy is suitable for reading and writing large blocks of data, and generally only reads and writes once in most cases

110. The RPO of the disaster recovery feature of a storage product is 30 minutes, and the RTO is 15 minutes. Which of the following statements is correct? (Multiple choice)

When the storage system fails, there may be a 30-minute difference in data time between the production end and the disaster recovery end.

When the storage system fails, the data time point of the production end and the disaster recovery end may differ by 45 minutes.

The time from business suspension to business recovery may be 15 minutes.

The time from business suspension to business recovery may be 45 minutes.

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111. Cloning is a complete copy of the source data at a certain point in time, and it is a snapshot technology.

TRUE

FALSE

112. In the file system backup scenario, under the premise of meeting the backup window and making full use of bandwidth, try to ensure that the backup strategy is independent and time-separated.

TRUE

FALSE

113. In Huawei Oceanstor v3 smartmigration, splitting only removes the pair relationship after the data synchronization between the source lun and the target lun is completed. Which of the following statements about splitting is wrong? (Multiple choice)

The system will exchange lun information at the split time point

When the smartmigration migration status is normal, it can be split

The splitting of multiple smart migration pairs can be realized at the same time

Supports two split modes: manual split and automatic split

114. Which statement is correct about Huawei Oceanstor 9000 NFS service characteristics? (Multiple choice)

Compatible with multiple operating systems, enabling file resource sharing in heterogeneous network environments

After a node fails, the client business connected to this node is quickly switched to other nodes to take over, and the business is not interrupted

Provide shared services externally in a cluster mode, and nodes can monitor each other's service status

Load balancing can be achieved according to business and node status, and data access is evenly distributed in the cluster

Oceanstor 9000 supports NFSv3 and v4 protocols

115. In Huawei's distributed storage, the block service asynchronous remote replication architecture is based on the block service cluster to build an asynchronous replication relationship. Based on differential data, the data of the master and slave volumes are periodically synchronized. After the data synchronization of the last synchronization cycle is completed, the At the beginning of the current synchronization cycle, all data generated on the master volume will be written to the slave volume during this synchronization.

TRUE

FALSE

116. A company uses Huawei Distributed Storage Object Service as a network disk resource for employees. If the administrator uses the quota feature to limit the capacity usage of employees, which object quota configuration should be considered? (Multiple choice)

Bucket-level quota

Tenant-Level Quotas

Account Level Quotas

User Group Quotas

117. Which of the following problems may be faced in the management of massive big data? (Multiple choice)

How to achieve fast search and improve retrieval efficiency

How to ensure the authenticity of data and prevent data fraud

How to realize the storage of different types of data at the PB level

How to reduce the amount of data generated and save storage resources

118. In the outline design stage, HLD (High Level Design) needs to be output.

TRUE

FALSE

119. Which of the following options is incorrect in describing the characteristics of Huawei's distributed storage intelligent load balancing?

Nodes can be classified according to needs. For each partition, the load balancing system supports the configuration of independent load policies and independent access domain names.

When automatically performing load balancing among all nodes, only performance load balancing is supported, and capacity load balancing is not supported.

The load balancing strategy can be based on: CPU, memory, bandwidth, number of network connections, node capacity value.

Load sharing service support: polling mode, CPU usage, number of node connections.

120. Small business A has purchased Huawei’s hyper-converged storage to build the company’s information platform. Which of the following switching modules does the hardware platform FusionsServer E9000 support? (Multiple choice)

10GE

FCoE

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121. In the FusianStorage system, a system deploys at least 3 MDCs to form an MDC cluster. When the system starts, the ______ cluster elects the master MDC among multiple MDCs. The master MDC monitors other MDCs. When the master MDC fails, a new MDC is generated. Primary MDCO (English abbreviation)

122. HyperMetro ensures real-time synchronization of data between storage arrays at two sites through the real-time cross-site data mirroring function. When the data center array receives write I/O, it needs to record the write log. In the log, only the address information is recorded, and the specific write data content is not recorded. The log is recorded in a memory space with power-failure protection for good performance.

TRUE

FALSE

123. Which one is incorrect about the description of the Huawei Oceanstor 9000 software module?

OBS (Object-Based Store) provides reliable object storage for file system metadata and file data

CA (Chent Agent) is responsible for the semantic analysis of application protocols such as NFS/CIFS/FTP, and sends them to the underlying module for processing

Multiple value-added features such as snapshots, hierarchical storage, and remote replication are provided by the PVS module

MDS (MetaData Service) manages the metadata of the file system, and each node of the system can store metadata

124. A company purchased a set of Huawei scale-out file storage to build a file sharing system. Currently, the clients of each department use different IP subnets, and the storage administrator configures the front-end service IP addresses of all nodes to belong to the same subnet.

Which operation steps are correct for the storage administrator to configure the subnet? (Multiple choice)

Set the DNS service IP address for the subnet

Specify the static front-end business IP addresses of all nodes in this subnet

One or more partitions can be defined as a subnet

Specify the dynamic IP address pool used by the subnet

125. In Huawei's local high-availability solution, if the HyperMirror feature is used, which feature must be used to create a mirror for the entire column of heterogeneous storage.

HyperMirror

Smartvirtnalization

HyperClone

Hirper Replication

126. On the LINUX client accessing the Oceanstor 9000 cluster, you can adjust the NFS mount parameters of the client to improve access performance. Regarding the adjustment of NFS mount parameters, which of the following descriptions is correct? (Multiple choice)

It is not recommended to set noatime, because this parameter will reduce access performance

It is not recommended to set nodiratime, because this parameter will reduce access performance

rsize/wsize is the maximum size of each read and write block, it is recommended to adjust it to the maximum value

It is recommended to set it to async to improve access performance

127. An enterprise uses all-flash memory to support its business. In order to reduce the pressure brought by duplicate data, the system can deduplicate data online. The granularity of deduplicated data blocks is the size of ___________

128. Which of the following descriptions about the software features of the QceanStor 9000 system is correct? (Multiple choice)

The file system supports up to 40P

Data self-healing, with a maximum recovery speed of 1TB/hour.

Each node exclusively shares the cache of the node.

Support thin provisioning and non-thin provisioning.

129. Between the two nodes of the Huawei N8000 (V200R001) cluster NAS, how many lines of redundancy are there between the heartbeat links?

130. When accessing the Windows client of the Huawei Oceanstor 9000 cluster, what aspects of the client can be adjusted to improve access performance? (Multiple choice)

TCP parameter adjustment

Dirty_bytes parameter adjustment

CIFS read and write size setting

Support Jumbo Frames

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131. Which of the following RAID technologies need to calculate the checksum data when writing data? (Multiple choice)

RAID 0

RAID 3

RAID 6

RAID 50

132. An enterprise plans to use the time when the business is not busy on the National Day to power off the IT room for circuit safety maintenance. After the circuit maintenance is completed, it is necessary to power on the power-off equipment. Which of the following equipment power-on sequences is correct?

External power supply --> controller enclosure power supply --> server power supply --> switch power supply

External power supply --> controller enclosure power supply --> switch power supply --> server power supply

External power supply --> server power supply -> switch power supply --> controller enclosure power supply

External power supply --> server power supply > controller enclosure power supply --> switch power supply

133. Can deduplication and compression in Oceanstor 5300 v3 be used at the same time?

can

can't

134. Regarding the description of the multi-tenant characteristics of the big data storage and calculation separation solution, which options are correct? (Multiple choice)

Support the creation of multiple namespaces to connect to multiple sets of computing clusters

Distributed data and metadata management

Support authentication isolation between computing clusters

Data logic isolation between multiple namespaces

135. After taking a snapshot of the source lun and modifying it at the same location, where will the modified data be written?

cow roll

Snapshot volume

Original volume

Exclusive mapping table

136. Operation and maintenance is essentially the operation and maintenance of all stages of the life cycle of networks, servers, and services.

TRUE

FALSE

137. In the synchronous remote replication of Huawei hybrid flash storage, the primary LU and secondary LUN can be in the same array.

TRUE

FALSE

138. HDD and SSD hard disks show huge performance differences under different IO patterns. The Append Only Plog technology in Huawei's distributed storage can provide the best performance model for different hard disk types.

TRUE

FALSE

139. After purchasing Huawei's all-flash storage device, which of the following options must be planned when planning basic storage services? (Multiple choice)

Disk domain

LUN capacity

Storage pool capacity

Number of LUNs

140. Which of the following is the correct power-on sequence for the Huawei distributed storage system?

Cabinet--->Switch--->Node---KVM

Cabinet--->KVM--Switch---->Node

Cabinet--->Node--->KVM---Switch

Cabinet--->Switch--->KVM--->Node

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141. When choosing the type of data backup, which of the following is wrong?

If there is only cumulative incremental backup but no full backup in the schedule, all files will be backed up when cumulative incremental backup is performed for the first time.

It is recommended to use the three backup types of full backup, differential incremental backup, and cumulative incremental backup in combination.

If the backup strategy is full backup combined with differential incremental backup, when the system fails, if you want to restore to the latest data, you need to restore the data of the last full backup and all differential incremental backups after the full backup.

The differential incremental method can save storage space to the greatest extent, and the backup window is small.

142. The SmartQoS technology of Huawei OceanStor all-flash storage supports the creation of tenant-level QoS control and file system QoS control. The two controls can take effect at the same time, forming a two-level QoS control.

TRUE

FALSE

143. An enterprise requires less storage space and a short backup window for data backup. At this time, which backup type should we suggest the enterprise to adopt?

Full backup

Full backup combined with cumulative incremental backup

Full backup combined with differential incremental backup

Cumulative incremental backup combined with differential incremental backup

144. An enterprise purchased a set of Huawei hybrid flash memory storage system, and plans to configure NAS services to facilitate file storage and sharing among various departments. Which of the following options is correct in planning and design? (Multiple choice)

General application software can be set to be accessible by each account

The access clients of each department must share the service IP with the NAS of the storage device on the same network segment

NAS is a file system-based share, which has nothing to do with the storage pool and does not need to consider the configuration of the storage pool

The data security requirements of the financial department are high, and the account access rights of non-financial department personnel can be restricted

145. Which of the following features cannot improve the performance of Huawei's hybrid flash storage products?

Smart Partition

SmartCache

SmartVirtualization

SmartTier

146. The primary storage array returns information of successful writing to the host.

4 Write IO data to the master and slave LUNs.

1-->2-->3-->4

1-->4-->3-->2

2-->1-->4-->3

3-->2-->1-->4

147. Huawei's hyper-converged storage uses a distributed hash algorithm. Which of the following processes occurs on the server side? (Multiple choice)

Write cache

Partition mapping OSD

Map the location on the disk

Hash calculation Partition

148. The object/file interoperability feature provided by Huawei's distributed storage is based on the method of superimposing NAS functions on the object storage system. What kind of file sharing access capability is provided on the basis of distributed object services?

HTТP

NFS

CIFS

FТР

149. The smartqos feature of Huawei Oceanstor v3 can allocate key resources of the storage system to meet the specific performance requirements of certain applications, thereby ensuring the service quality of different services. What functions are mainly provided? (Multiple choice)

Allocate system resources according to priority to ensure the service quality of high priority business

Perform performance guarantee on the shutdown business to ensure that it reaches the specified performance target

Awaken the flow limit for non-key businesses to prevent them from excessively occupying system resources

Execute control and protection of key system resources to ensure high reliability of the system

150. In the Huawei storage system, the () advanced feature can create a full data copy of the source LUN (target LUN) at a specific point in time (when synchronization is started), and the target LUN is immediately readable and writable without waiting for the background Copy complete.

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151. Which of the following scenarios are more suitable for using FusionInsight hadoop technology of Huawei Oceanstor 9000? (Multiple choice)

Write-once-read-many applications

Structured Data Form Processing

Storage and retrieval of massive small files

Mass document management with frequently changing content

152. Compared with RAID5 and RAID10, which of the following statements are correct? (Multiple choice)

RIAD5 has higher disk utilization than RIAD10

RIAD5 has lower disk utilization than RIAD10

RIAD5 is more applicable than RIAD10

RIAD5 is less applicable than RIAD10

153. A company purchased a set of Huawei scale-out file storage. After the system deployment is completed, the administrator sets the classification according to business needs. To better utilize the advantages of InforTier features, which options are recommended configurations? (Multiple choice)

For data with low access heat, it is recommended to associate the node pool to which the server with slow hard disk response speed but large overall storage capacity belongs to this tier

For data with high access heat, it is recommended to associate the node pool to which the server with strong hard disk processing capability and fast response speed belongs to this classification

It is recommended to configure a classification corresponding to multiple file pool policies

It is recommended that multiple classes use a file pool policy

154. An enterprise uses Huawei's all-flash storage system to support its main business. In order to reduce the storage pressure caused by repeated data, if the data type is not suitable for online deduplication, calculate the () of the data and insert the result into the opportunity table.

155. Regarding the description of Huawei Oceanstor 9000, which of the following options is incorrect?

Oceanstor 9000 uses an asymmetric architecture

Oceanstor 9000 provides flexible and seamless expansion of 3-288 nodes

The Oceanstor 9000 system adopts a fully interconnected and fully redundant networking mode

Oceanstor 9000 adopts distributed cluster architecture, no single point of failure

156. A company purchased a set of Huawei distributed storage to provide object storage and file storage services. The administrator allows users to access HTTP in the system to use object and file services at the same time.

TRUE

FALSE

157. A company has various services such as mail and network disk, and its storage space is limited. It plans to use SmartThin technology to optimize storage space.

Regarding SmartThin, which of the following statements are correct? (Multiple choice)

SmartThin is to virtualize storage resources

The implementation of SmartThin is to allocate on demand

SmartThin does not pre-allocate all space, but presents to users a form of capacity larger than physical storage space

SmartThin does not support the creation of LUNs larger than the maximum physical available space of the storage pool

158. Huawei Oceanstor 9000 realizes storage of unstructured data through WushanSQL, and completes data analysis through Fusion Insight.

TRUE

FALSE

159. Which of the following is not a high-performance technology of hypermetro?

Zero data copy

fastwrite

Cache bubbles

Geo-optimized access

160. If there are third-party cabinets in the computer room, the inspection contents of the third-party cabinets include: (Multiple choice)

Ground load of the computer room

Cabinet parameters

Cabinet power system

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161. The eDevLun stored in Oceanstor v3 refers to the third-party heterogeneous device volume connected to Huawei storage

TRUE

FALSE

162. Which of the following are the features supported by Oceanstor v3 storage products? (Multiple choice)

FTP

HTTP

NIS

LDAP

163. Regarding SmartMigration LUN information exchange, which of the following descriptions is correct? (Multiple choice)

The LUN information exchange needs to stop the service.

After the LUN information is exchanged, the host will send a data read and write request to the LUN ID of the target LU

Before and after LUN information exchange, the data volume ID of the source LUN will change.

Before and after LUN information exchange, the LUN ID of the source LUN remains unchanged.

164. When planning and designing a storage project, what are the following basic stages? (Multiple choice)

Outline Design Phase

Conceptual Design Phase

Research phase

Physical Design Phase

165. The S5752/S5352 switches only support optional AC power modules.

TRUE

FALSE

166. The active-active arbitration mechanisms supported by Huawei storage products include () mode and arbitration server mode.

167. For traditional RAID, what are the advantages of raid 2.0? (Multiple choice)

Business load balancing b. is faster

Rapid refactoring

Full participation in refactoring

168. Which of the following is a high-risk command of the Huawei storage danger type?

import configuration_data

reboot system

show alarm

Chang alarm clear sequence list=3424

169. In Huawei Oceanstor 9000, the client that processes the write request will slice the data according to the protection level specified by the file, write the data slices to the power-saving memory on the corresponding node, and then calculate the calibration by each node. Check the data sheet and write it into the power-saving memory of each 2 nodes. After all nodes are successfully written into the power-saving memory, the write operation is successful.

TRUE

FALSE

170. A company uses Huawei’s distributed storage object service to save transaction orders and has enabled the WORM function. The administrator finds that some objects can only be read and cannot be modified. Then what WORM state may these objects be in? (Multiple choice)

Conservation status

Expiration of Protection

Unprotected state

Pause protection

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171. If the two sites to be migrated are far away and network loss has a great impact on the migration rate, do not adopt the direct cross-site migration solution.

TRUE

FALSE

172. What information needs to be collected before deploying a disaster recovery solution? (Multiple choice)

Production system equipment information

Network information

Business system

data volume

173. Which of the following is the correct statement about the characteristics of Huawei’s scale-out file storage NFS business? (Multiple choice)

After a node fails, the client business connected to this node is quickly switched to other nodes to take over, and the business is not interrupted.

Load balancing can be achieved according to business and node status, and data access is evenly distributed within the cluster.

Compatible with multiple operating systems, it can realize file resource sharing in a heterogeneous network environment.

Shared services are provided externally in a cluster mode, and nodes can monitor each other's service status.

174. In the Huawei HyperMetro active-active solution, when the active-active data center link fails, the priority site can submit to arbitration first, so that the priority site wins the arbitration first and can continue to provide host services.

TRUE

FALSE

175. In the Huawei Oceanstor 9000 system, which of the following functions or parameters will affect the InfoTier function?

Signature function

Notify function

Access Time Tracking

176. The customer value of Huawei Oceanstor 9000 (C30) InfoEqualizer feature is reflected in: (Multiple choice)

Oceanstor 9000 can distribute requests to relatively idle nodes according to the smart address of the current business load of each node, thereby improving the access performance of the client

Oceanstor 9000g automatically detects faults and adjusts services to other normal nodes, thereby improving the reliability of client service access

This feature is a basic feature, no need to buy a license, saving costs

It allows clients to access Oceanstor 9000 by using domain names. Client operators do not need to know the IP address of each specific visit, which simplifies management operations and reduces management costs

177. When selecting a storage device, if the business requires more than 3000 IOPS for a single hard disk, which of the following hard disk types can be selected? (Multiple choice)

SAS HDD

SAS SSD

NL SAS HDD

NVMe SSD

178. In the storage pool of the local storage system, the external LUN mapped through SmartVirtualization will be created as a raw storage logical volume according to the virtualized data organization form. The raw storage logical volume created in this way is called ()

179. The controller in Huawei's hybrid all-flash memory fails, and the storage system tries to reset. During the reset process, the data is stored in the cache. If the reset fails, the data in the cache will be written to the hard disk of the controller () to avoid data loss.

180. In an enterprise's IP SAN network, the host resource occupancy rate is always high. After investigation, it is found that the Initiator software in the host takes up a lot of resources to complete the conversion of iSCSI packets to TCP/IP packets. The enterprise engineer proposed several storage network upgrade solutions. Which of the following solutions can solve the above problems? (Multiple choice)

Expand the capacity of the storage device

Upgrade NIC card to TOE NIC card

Upgrade 10GE network to 25GE network

Upgrade the NIC card to an iSCSI HBA card

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181. After Huawei Distributed Storage enables the object deduplication function, the system will automatically search for duplicate objects globally, and only keep one copy of the same object to delete redundant duplicate data. The original duplicate data will be replaced with pointing to the retained single copy references.

TRUE

FALSE

182. Which of the following is wrong about the CIFS share configuration of Huawei Oceanstor 9000?

After Notify is enabled and checked, a client's change operation in a directory cannot be perceived by other clients that are accessing this directory and its parent directory

After Oplock (Opportunistic locking) is enabled, the file will be cached locally before being sent to the shared storage, which will help improve the efficiency of client access

After the Guest is enabled and checked, the user does not need to enter the user name and password when accessing the shared directory on the client

After the mandatory signature is checked, the client will be forced to use the signature function. If the client is not set to start, Oceanstor 9000 will reject the data access request of the client

183. In the five-step method of disaster recovery scheme design, which one is the correct order of the following steps in the design process?

Disaster recovery solution selection --> Compatibility confirmation --> Storage capacity and disaster recovery bandwidth calculation --> Network design --> Disaster recovery function design

Disaster recovery solution selection --> Network design --> Storage capacity and disaster recovery bandwidth calculation --> Compatibility confirmation --> Disaster recovery function design

Compatibility Confirmation-->Network Design-->Storage Capacity and Disaster Recovery Bandwidth Calculation-->Disaster Recovery Function Design-->Disaster Recovery Solution Selection

Compatibility confirmation-->Network design-->Storage capacity and disaster recovery calculation-->disaster recovery solution selection-->disaster recovery function design

184. Which node types does Huawei OceanStor 9000 support? (Multiple choice)

P12

P25

P36

C36

185. An enterprise plans to purchase a set of storage devices. According to the IOPS requirements of the enterprise business, a single hard disk for storage needs to support 3000 IOPS. Considering the cost factor, which of the following hard disks is recommended to best meet the requirements of the enterprise?

SAS SSD

FC SSD

SAS HDD

NL SAS HDD

186. Regarding the multi-NameNode features of Huawei’s distributed storage products, which of the following statements is correct?

Only one Active NameNode provides metadata services

NameNode is the metadata request processing node of HDFS

NameNode switching will cause metadata service interruption

NameNode is the data read request processing node of HDFS

187. Among the following statements about the principle of file system snapshot implementation, which options are wrong? (Multiple choice)

When creating a file system snapshot, because the snapshot is stored in a new location, the write operation will affect the write performance of the storage LUN

After the file system snapshot is successfully created, if the file system user wants to access the snapshot, the snapshot directory must be remounted to access

A file system snapshot is a copy of the data generated by the source file system at a certain point in time

The core technology of file system snapshot implementation is ROW

188. Which options are correct in the following description about iSCSI? (Multiple choice)

No need to configure Initiatox software, the operating system will automatically establish an iSCSI connection

ISCSI initiators can be divided into three types (), namely software Imitiator driver, hardware T0E (Tcp lond Eneina. TCP offload engine) card and iSCSI HBA card

ISCSI protocol supports transmission in FC network

The ISCSI protocol layer is responsible for generating CDB (Command Descriptor Block, command descriptor block) and sending it to the iSCSI protocol layer.

189. The health status of the Huawei Oceanstor 9000 system cluster includes: (Multiple choice)

normal

Malfunction

Partial damage

Downgrade

190. A colleague customizes Huawei's active-active disaster recovery solution for a customer. The customer already has a set of OceanStor S5500T V2 and a third-party storage system. These two sets of equipment are placed in two data centers to implement active-active disaster recovery. The solution is?

Not feasible, the active-standby disaster recovery solution requires at least one set of OceanStor V3 storage.

Not feasible. The active-standby disaster recovery solution requires at least a set of OceanStor 5300 V3 and above storage systems.

It is feasible, and the storage device meets the requirements of the active-active disaster recovery solution.

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191. There are 1040GB files that need to be backed up, the backup window is 6 hours, GE network, media side deduplication, which of the following statement is correct? (Multiple choice)

Optional LAN-Base networking

The required bandwidth is 61.6MB/s

The required bandwidth is 71.7MB/s

Must use LAN-Free networking

192. Internet company A uses Huawei's hyper-converged infrastructure to build the company's information platform, which significantly improves the reliability of the platform. Which of the following options reflect this characteristic? (Multiple choice)

Support active-active and support zero business interruption

Compatible with mainstream backup software in the industry

Support asynchronous replication, with short RPO time

Factory pre-integrated

193. Which of the following is an incorrect description of the principle of de-duplication technology?

For the data that needs to be stored, perform hash comparison in units of data blocks.

The stored data blocks are no longer stored, and no processing is required, for example, no additional indexes are required.

The same data block is physically stored only once.

Through the index, you can see a complete logical view of the data.

194. The transport protocol used by the management network of the object storage service (compatible with OpenStack Swift) is?

POP3

HTML

HTTPS

HTTP

195. Which of the following descriptions about cloud computing is correct? (Multiple choice)

Cloud computing is dynamically scalable

End users of cloud computing need to understand how cloud computing works

Cloud computing can provide virtual disk space

Cloud computing is usually used in business systems that require high performance and high response speed

196. Huawei storage products provide data center active-active solutions based on HyperMetro. By classifying services, some services are mainly based on data center A, data center B is hot standby, and some services are mainly based on data center B. Center B is a hot standby to achieve the effect of active-active.

TRUE

FALSE

197. Which of the following is correct about the NDMP protocol? (Multiple choice)

It is an open protocol based on enterprise-level data management

Support CIFS or NFS file backup

Does not support backup disk libraries

Mainly for the field of data backup and recovery

198. Among the following statements about the characteristics of the file system HyperSnap, which options are correct? (Multiple choice)

The source file system refers to the file system where the source data that needs to create a snapshot resides

File system remote replication relies on snapshot technology. When periodic synchronization starts, the master-slave file system will automatically generate a snapshot

BP (Block Pointer) is the metadata used to record the storage location of data blocks in the file system

COW (Copy On Write) refers to the copy-on-write technology, which is the core technology for realizing file system snapshots

199. When planning and designing a storage solution, if the customer pays attention to performance satisfaction, which of the following aspects should be planned and designed? (Multiple choice)

Network bandwidth

Hard disk type

Number of Hard Disks

RAID level

200. Which of the following are the advantages or capabilities of Huawei FusionInsight? (Multiple choice)

Component Innovation Capabilities

Engineering service support capabilities

Solution Configuration Capabilities

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201. Regarding source-side deduplication, which of the following descriptions is incorrect?

When the data is transmitted from the source to the target, the transmitted data blocks are first hashed and deduplicated at the source.

Compared with deduplication on the target side, it can save transmission bandwidth.

Occupy source resources for deduplication processing.

Only the data of the new data block needs to be transmitted to the target end, and there is no need to transmit information related to the old data block

202. Which of the following is the difference between the wiselink and smartconnect technologies of Oceanstor 9000?

Domain name resolution function

Domain name design and zone management

Rebalance function

IP failover function between nodes

203. Which of the following options does not belong to the challenges faced by big data analysis:

The traditional IT architecture cannot provide enough storage space for the rapidly growing amount of data

Traditional analysis methods are not suitable for the analysis of big data types

Massive data put forward higher requirements for fast, efficient and real-time data analysis

Need to have a high-capacity requirement for a one-stop solution

204. The data synchronization methods in Oceanstor 9000 Inforeplicator include full synchronization and incremental synchronization, and incremental synchronization can be triggered manually or automatically

TRUE

FALSE

205. The difference between synchronous replication and asynchronous replication are? (Multiple choice)

Asynchronous remote replication, when a disaster occurs, data will be lost from the center

Synchronous remote replication will affect the performance of the host. Asynchronous remote replication will not affect the performance of the host.

Synchronous replication is to replicate real-time data Asynchronous replication is to replicate periodic replication

There is no limit to the network distance of synchronous replication

206. After the remote replication configuration is completed, the slave LUN is read-only by default. If the master LUN fails, the administrator needs to perform the "______________" operation to manually set the slave LUN as writable, so that the slave storage system can manage the business of the host and ensure Business continues.

207. The object service provides multi-tenant management capabilities, which can physically isolate data between different tenants and facilitate resource division.

TRUE

FALSE

208. Scale-out is a horizontally scalable architecture that mainly responds to the needs and challenges brought about by the rapid growth and complex changes of data. Which of the following options are included in the characteristics of a scale-out architecture? (Multiple choice)

Distributed processing

Online expansion

Data sharing

Clustering

209. Which of the following options are the authentication methods that Huawei QceanStor 9000 storage system CIFS does not support? (Multiple choice)

AD domain

LDAP domain

Local Authentication

Global Authentication

NIS certification

210. Which of the following options are disadvantages of HDFS components? (Multiple choice)

Does not support the remote replication feature

Low hardware fault tolerance

Large-scale deployment is prone to file system performance bottlenecks

Low-capacity utilization and high cost

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211. Which of the following options does not include the file sharing interface provided by the Huawei Oceanstor 9000 system?

Object

NFS

CIFS

FTP

212. Which of the following statements about the new era of ICT and technology is correct? (Multiple choice)

Cloud Computing) is the growth, usage, and delivery model of Internet-based related services, usually involving the provision of dynamically scalable and often virtualized resources over the Internet

Social media is a virtual community and network platform for people to create, share and exchange opinions, views and experiences

CPS includes the ubiquitous environment perception in the future, system engineering such as embedded computing, network communication and network control is a physical system with computing, communication, precise control, remote collaboration and autonomous functions

Migration of ICT systems from support systems to production systems in the new ICT era

213. Regarding the read cache process of Huawei’s distributed storage multi-level cache technology, which of the following should be prioritized for reading hits?

Memory Write Cache

SSD Read Cache

Memory Read Cache

SSD Write Cache

214. When creating a file system snapshot, because the snapshot is stored in a new location, the write operation will affect the write performance of the storage lun

TRUE

FALSE

215. In the Huawei Oceanstor 9000 storage system, when a certain InfoReplicator is in a split state, which of the following statements is incorrect?

Pair split occurs, the possible reason is temporary link abnormality or network bandwidth expansion

At this time, the master-slave relationship of the directories at both ends specified by Pair remains unchanged

When the pair is resynchronized, the difference data that was not copied to the secondary directory due to the split operation of the last synchronization and the synchronized quantity need to be synchronized

216. Which of the following descriptions for the CIFS protocol is correct? (Multiple choice)

Data transmission based on TCP protocol

Data transmission based on UDP protocol

Linux platform file sharing protocol

windows platform file sharing protocol

217. The Persistence layer of Huawei's distributed storage provides persistent storage capabilities, EC and multi-copy capabilities, and provides Plog append only access capabilities through PlogClient.

TRUE

FALSE

218. The features of Huawei Oceanstor 9000 FTP service include: (Multiple choice)

The unit of FTP sharing is a directory, and the shared directory can be accessed by multiple clients

It can provide business node status to achieve load balancing, and data access is evenly distributed in the cluster

Provide shared services externally in a cluster mode, and nodes can monitor each other's service status

Compatible with multiple operating systems

219. The following commands about detecting the network on the switch side, the first description: the display Inter command can be used to view interface statistics and check whether the switch records interface packet loss. The second description: display logbuf, if discarding, pay attention to whether there is a loop in the back-end network.

Both descriptions are correct

The first is true and the second is false

The first is wrong and the second is correct

Both are wrong

220. Which of the following options are Huawei InfoTurbo enhanced features? (Multiple choice)

Fixed read ahead

Intelligent pre-reading

SMB3 Multichannel

NFS Protocol Enhancements

Page 23 of 29

221. Huawei's end-to-end active-active data center solution is divided into 6 layers. The six layers are?

Storage layer, session layer, application layer, network layer, transport layer, and physical layer

Storage layer, session layer, application layer, network layer, transport layer and security layer

Storage layer, computing layer, application layer, network layer, transport layer and security layer

Storage layer, computing layer, application layer, network layer, transport layer and physical layer

222. A data center isolates storage devices from the outside world through firewall devices. When an engineer maintains a storage device, he needs to connect to the storage device through the command line or the Devicelanager interface. Which of the following ports need to be opened on the firewall to meet the operation and maintenance requirements of engineers? (Multiple choice)

3260

8088

30002

223. According to the Huawei backup solution design process, sort the following 4 (drag and drop questions)

1) Network design

2) Compatibility Confirmation

3) Strategy formulation

4) Capacity calculation

224. For Huawei's disaster recovery and active-active solution, which of the following can be used for the intermediate link? (Multiple choice)

GE-WAN link

FC link

10GE link

GE private network link

225. In synchronous remote replication, which of the following descriptions is correct regarding the processing flow of the storage receiving the I/O request sent by the server?

Send to the primary cache first, then to the primary storage, and then the primary storage is synchronized to the secondary cache

First sent to the master cache, and then sent to the slave cache by the master cache

Send to the master cache and the slave cache at the same time.

First send to the master-side cache, enable time slice technology in the master-side cache to synchronize to the slave-side cache

226. An enterprise needs to continuously protect the data of its important business, and needs to perform different operations on LUN data without affecting the business, such as generating reports, data testing, and data analysis. Which of the following characteristics can meet the requirements of this enterprise?

SmartVirtualization

HyperCDP

SmartCache

HyperLock

227. Which of the following descriptions about the backup integration scheme is correct? (Multiple choice)

Only supports 1 backup agent

Support deduplication

Support fine-grained recovery

Support report management

228. Which of the following descriptions about indicator lights is correct for Huawei OceanStor flash storage products? (Multiple choice)

In the control box, if the orientation indicator light is off, it means that the control phase is positioned

The warning light in the control phase is amber, indicating that the control phase is in alarm

The battery button and the battery indicator light must be separated

The phase positioning indicator in the control box is always on in blue, indicating that the control board is being positioned

229. InfoEqualizer feature partition is used to separate nodes of different services. A partition contains a group of nodes. What are the same characteristics of these nodes? (Multiple choice)

Load balancing strategy

Hardware Type

Dynamic Domain Name

Static domain name

230. Which is wrong description about analyzing and adjusting the CIFS transmission size of the Oceanstor 9000 system? (Multiple choice)

The CIFS transmission block size refers to the size of the data block carried in a single service request between the IP client and Oceanstor 9000 in CIFS file sharing

Analyze the file size ratio that needs to be stored in Oceanstor 9000 to obtain the storage file model, and then select a value with an appropriate size

To adjust the transmission block size, you need to adjust the client and Oceanstor 9000 at the same time. If they are inconsistent, the minimum value of the values set by both parties shall prevail.

Since the value of this parameter in Oceanstor 9000 has been set to the minimum value by default, it is only necessary to adjust the value of this parameter on the client side to the target value

Page 24 of 29

231. Game live broadcast platform A uses Huawei's all-flash storage to protect its business, and the storage system uses FlashLink technology specially designed for flash memory. Which of the following statements are correct for the ROW full score bar to be written in a large block order? (Multiple choice)

Sequential writing of 1 large block makes full use of SAS bandwidth to reduce garbage collection

Multiple discrete data blocks are aggregated into a continuous large data block in the controller memory

Large data blocks are sequentially written to SSD

The controller perceives the data layout in the SSD

232. What file system does Huawei Oceanstor 9000 use to provide a unified business access domain name?

NTFS

HDFS

WushanFS

EXT3

233. Which of the following statements about snapshots is correct?

A snapshot is the newly written data

A snapshot refers to a consistent data copy of the source data at a certain point in time

Snapshot data can only be read by the host and cannot be changed

A snapshot is a physical copy of the complete source data

234. In the Oceanstor 9000 system, a node pool refers to a collection of nodes with the same characteristics (physical type/access specific energy), and dynamic hierarchical storage allows physical nodes in the same file system to be divided into different node pools.

TRUE

FALSE

235. Parallel deduplication is highly reliable. The built-in failover capability can make the backup job uninterrupted. Even if one node in the grid is unavailable, the remaining nodes can continue to work and take over the backup. Faulty nodes are automatically repaired in the background, and then join the network to continue working.

TRUE

FALSE

236. Regarding the NDMP features of Oceanstor 9000 products, which of the following option descriptions is incorrect?

The NDMP protocol supported by Oceanstor 9000 is version V4

The NDMP backup feature needs to purchase a license to use it

The NDMP feature of Oceanstor 9000 uses snapshot-based backup by default

In data protection scenarios and archiving scenarios, NDMP features can be used

237. In a relatively large backup domain, using Simpana backup software, you can set up multiple cs, load sharing, and improve efficiency.

TRUE

FALSE

238. Which of the following statements about the characteristics of Huawei HyperMirror is correct? (Multiple choice)

When one of the mirror copies fails, the business on the LUN will not be affected in any way, and the host side can still work normally

This continuously protected LUN can be a LUN of a third-party storage system

Provide two mirror copies for a LUN, and the data in the two copies are exactly the same

You can configure other value-added features on the LUN protected by volume mirroring to provide multiple protections for data

239. An enterprise uses Huawei OceanStor hybrid flash memory storage. To facilitate management, the administrator uses SmartQuota technology to create different Quota Trees on the root directory for separate use by departments A, B, and C. Regarding setting the quota type, which of the following statements are correct? (Multiple choice)

Default directory quotas can be set on the Quota Tree

User quotas can be set on the Quota Tree

Directory quotas can be set on the Quota Tree

User group quotas can be set on the Quota Tree

240. In the SmartQuota feature of Huawei OceanStr hybrid flash memory storage, each I/O operation, the system will check the used capacity and number of files of the quota, plus the incremental capacity and files of this operation, whether it will exceed the hard quota, if it exceeds, the operation fails, otherwise the operation succeeds.

TRUE

FALSE

Page 25 of 29

241. Huawei Oceanstor v3 smartdedupe& smartcompression will definitely consume the system resources of the storage system during data deduplication and compression, thus reducing the performance of the storage system

TRUE

FALSE

242. In OceanStor 9000, if a certain hard disk is offline for 15 minutes, the recovery method of the data on the hard disk is. The system calculates the data on the hard disk and restores the data to other normal hard disks.

TRUE

FALSE

243. File-level deduplication is also called single-instance storage (SIS). Check the attributes of the file to be stored according to the index, and compare it with the stored file. If there is no identical file, store it and update the index, otherwise only Enter a pointer to an existing file.

TRUE

FALSE

244. The CSI plug-in auxiliary service provided by the Kubernetes community is implemented based on the CSI specification and deployed on all K8s nodes to complete operations such as volume creation/deletion, mapping/unmapping, mounting/unmounting, etc.

TRUE

FALSE

245. Which of the following service interfaces does the Huawei N8000 cluster NAS system provide? (Multiple choice)

10GE

SAS

246. OceanStor 9000 uses Erasure code technology to protect data. If there are 6 nodes in a site, and the customer wants to ensure that the data can still be restored even if 3 disks are damaged in a stripe, the redundancy code can be used. The remaining protection levels are: (Multiple choice)

4+3:1

6+3

4+2

12+3:1

247. Operation and maintenance includes many aspects of capability requirements, not only product technology, but also management systems, processes and other elements.

TRUE

FALSE

248. Which one of the following does not belong to the 4S expansion technology of OceanStor 18500/18800 products?

Scale-up

Scale-down

Scale-out

Scale-in

249. Which of the following statements about remote replication consistency groups is correct? (Multiple choice)

The LUNs of different remote replications in the consistency group can be located on different working controllers

All secondary LUNs of remote replication must be located in the same remote storage system

The remote replication in the consistency group must be the same replication mode

Only the primary storage system supports adding remote replication on this system to the consistency group

250. The three elements of the CAP principle of a distributed database system are: Consistency, Availability, and Partition tolerance.

Regarding the three elements of CAP followed by the database, which of the following descriptions are correct? (Multiple choice)

In a distributed system, these three elements can only achieve two points at the same time at most, and it is impossible to take care of all three

For distributed data systems, partition tolerance is a basic requirement

For most web application databases follow the CPA principle, the design usually sacrifices consistency for high availability

Partition tolerance is a basic requirement for traditional relational databases

Page 26 of 29

251. In the HyperMetro active-active data center solution, if a member LUN of an array has bad blocks, which of the following statements is incorrect?

When repairing bad blocks, first apply for the read permission and confirm the local read permission of the HyperMetro Pair.

When reading the local LUN of the array, after reading the bad block, if it is an error that cannot be repaired, it will return the host read error information.

When reading the local LUN of the array, after reading the bad block, if it is an error that can be repaired, the read data will be returned to the host to ensure that the host responds quickly.

When reading the local LUN of the array, after reading the bad block, if the error cannot be repaired, the system will repair it according to the data of the remote array LU

252. NFS is a method for realizing disk file sharing between Unix systems, and it supports a system protocol for applications to access data located in server disks through the network on the client side.

TRUE

FALSE

253. What are the common hardware failures of Huawei oceanstor series storage? (Multiple choice)

Controller failure

Hard disk failure

raid failure

Oceanstor toolkit failure

254. Which of the following descriptions about the global cache of OceanStor 9000 is incorrect?

The memory spaces on all storage servers logically form a unified memory resource pool

The data cached on any storage server can be hit in the global cache when any subsequent storage server receives a request to access the data

Only one copy of all user data will be cached in the entire cluster system

The data and its verification data will be cached in the global cache

255. In which aspect is the difference between using synchronous remote replication and asynchronous remote replication in Huawei’s disaster recovery solution?

RTOs

RPO

Disaster Recovery Data Availability

Copy link

256. Huawei Oceanstor 9000 needs to apply for some temporary IP addresses for the back-end business network during the software installation process. Regarding the description of these temporary IP addresses, which are correct? (Multiple choice)

If the cluster has 6 nodes, you need to apply for 6 IP addresses

Need to specify which node uses which IP address

After the software installation is complete, these addresses will be automatically deleted

It doesn’t matter if the IP address of these temporarily planned back-end storage networks overlaps with the IP address of the back-end storage network actually planned by the node

257. When maintaining the Huawei Oceanstor 9000 system, special personnel are required to keep the root password of the system. Pay attention to encryption when passing the password, and try to avoid passing the password by email.

TRUE

FALSE

258. Which of the following descriptions about the OceanStor backup solution is correct? (Multiple choice)

Support cross-domain management

Support Huawei storage hardware snapshot

Cannot be managed on the web

Separation of backup nodes and backup storage

259. When using the InfoLocker feature for file protection, which states can the file change between? (Multiple choice)

Protection Expiration

Conservation status

Unprotected state

Append state

260. Which of the following descriptions of OceanStor V3 storage array asynchronous remote replication is wrong?

During the asynchronous remote replication process, after the primary LUN write I/O is successful, the primary array returns the write I/O success to the host.

After creating an asynchronous remote replication relationship, an initial synchronization is required.

When adding a secondary LUN for asynchronous remote replication, the system automatically creates and activates a snapshot of the primary and secondary LU

Page 27 of 29

261. Which of the following statements about synthetic full backup is wrong?

On the backup server or media server, merge a full backup from previous full backups and other incremental or differential backups.

Since the full backup is generated on the backup server, there is no pressure on the application server.

The backup space occupied is as large as the full backup.

The recovery time is longer than the full backup time.

262. Which of the following servers must be authenticated by the user to access the object storage service (compatible with the OpenStack Swift interface)?

KEYSTONE

LDAP

RBAC

263. Which of the following statements about eDevLun in the SmartVirtuAlization feature of Huawei OceanStor all-flash storage is correct? (Multiple choice)

The eDevLUN consists of two parts: the actual data volume and the metadata volume. The correspondence between metadata and actual data is established through the mapping relationship.

eDevLUN refers to the third-party heterogeneous device volume connected to Huawei storage

The application server can access the data on the external LUN through the eDevLUN

The actual physical space occupied by the eDevLUN in the local storage system is the storage space required by the data volume

264. The protocols supported by DAS are? (Multiple choice)

SCSI protocol

SAS protocol

FC protocol

SATA

265. In Oceanstor v3 storage, which information of edevlun is the storage space directly provided by Huawei storage

data volume

meta volume

external lun

taget lun

266. Which of the following are the types of flash memory particles of SSD hard drives? (Multiple choice)

SLC

MLC

TLC

QLC

267. In Huawei's hybrid flash storage SmartQos, I/O priority scheduling is mainly to schedule key system resources. The main scheduled resources include: (Multiple choice)

CPU computing resources

Cache resources

Back-end hard disk concurrent resources

Bandwidth resources

268. Where is the shared mapping table of HyperSnap stored?

COW Data

Source LUN

Snapshot LUNs

Cow Meta

269. Huawei Oceanstor v3 smartmigration is the key technology to realize business migration, which can completely migrate the business on the source lun to the target lun without interrupting the host business, and make the target lun replace the source lun to bear after the copy is completed Business

TRUE

FALSE

270. An account is a credential for using an object storage service (compatible with the Amazon S3 interface), and its management functions do not include:

Contract business management

Basic Account Management

Certificate Management

Cross-domain access policy management

Page 28 of 29

271. The block service provides a linked clone mechanism, which supports the creation of multiple snapshots based on a cloned volume. The data content of each snapshot volume when it is just created is consistent with the data content in the cloned volume. Subsequent modifications to the cloned volume will not affect the original snapshots and other cloned volumes.

TRUE

FALSE

272. Which of the following is not included in the characteristics of the InfiniBand protocol?

High speed

Remote Direct Memory Access Function

Development based on standard protocols

Transport offload, which can transfer packet routing from the chip level to the os

273. Huawei Oceanstor v3 smartQos has different priorities for each lun, scheduling different computing, cache and other system resources, and ensuring the normal business of high-priority luns when resources are tight

TRUE

FALSE

274. Which of the following options does not belong to the characteristics of distributed storage big data service solutions?

Integrated deployment, storage and computing are configured in proportion

High performance supports EC, better than native HDFS 3.0

Distributed NameNodes

An EC mechanism that is truly fully compatible with native HDFS semantics

275. The minimum number of nodes required for OceanStor9000 cluster deployment is?

276. There is a user whose quota type is capacity quota, and the quota method is mandatory quota. The recommended threshold for this user's usage capacity is

3GB, the soft threshold is 4GB, the hardware threshold is 6GB, and the grace period is 10 days. Which of the following options is incorrect?

When the storage space used by the user reaches 3GB, the system will not report an alarm, and the user can continue to write

When the user's used storage space reaches 5GB, and the storage capacity exceeds 4GB for 11 days, the user will be restricted from writing data

When the user's used storage space reaches 4GB, the system will report an alarm, and the data writing will not be restricted within the grace period

When the user's used storage space reaches 6GB, the system will prohibit data writing

277. In the process of dealing with storage failures, which of the following principles should be followed? (Multiple choice)

Locate the exterior first, then the interior

Common alarms first, then individual alarms

Check the storage device first, and then check the business host

High-level alarms first, followed by low-level alarms

278. The Kunpeng 920 chip of Huawei’s all-flash memory storage system, through CPU grouping, service grouping, inter-core lock-free, and three-level many-core expansion technology, realizes performance that varies with the number of controller nodes, the number of CPUs in the controller, and the number of CPUs. Performance increases linearly.

279. Which of the following backup types arranges the space occupied by backup media in the correct order:

Full backup > Cumulative Incremental Backup > Differential Incremental Backup

Cumulative incremental backup > differential incremental backup > full backup

Differential incremental backup>full backup>cumulative incremental backup

Full backup > Differential Incremental Backup > Cumulative Incremental Backup

280. Regarding the global deduplication technology adopted by the block service, which descriptions are correct? (Multiple choice)

Filter the data with low repeatability through the opportunity table

The fingerprint of the data block first enters the opportunity table for counting. Only when the same data block has been written multiple times reaches the threshold, can it enter the fingerprint table to perform deduplication

The distributed storage space is huge. In order to reduce the memory space consumption of the fingerprint table, the mechanism of the fingerprint opportunity table is introduced

The fingerprint table takes up less memory and can support deduplication for larger capacity systems

Page 29 of 29

281. What advantages does Huawei OceanStor 9000 cluster NAS technology have over traditional NAS storage systems? (Multiple choice)

The failover is fast, and the failure of a single node in the cluster does not affect the business

Multi-node cluster, load balancing, global cache, providing strong performance

The engine cluster is connected to SAN storage, and SAN storage can use heterogeneous storage

Scale-out engine architecture is scalable

282. Which of the following descriptions about Huawei OceanStor V3 cascaded 3DC and parallel 3DC is correct? (Multiple choice)

Regardless of parallel 3DC or cascaded 3DC, if synchronous replication between sites is recommended to use optical fiber connection, asynchronous replication can use ISCSI link

In the parallel 3DC network, since the production site storage system undertakes the task of synchronizing two remote replication data, the impact on the performance of the production center storage system is greater than that of the cascaded 3DC network.

In parallel 3DC, the normal operation of the entire disaster recovery system may be affected due to a single site failure, so compared with cascading, the reliability is worse

283. Which of the following descriptions about the C72 node management interface is correct? (Multiple choice)

There are only C72 nodes in the 0ceanStor 9000 cluster, and the number of C72 nodes is greater than or equal to 3. The NICo of the A control module of the first 3 nodes provides the management interface.

When C72 nodes and non-C72 nodes are deployed together, C72 nodes can be selected to provide independent management network ports.

When C72 nodes and non-C72 nodes are mixed and deployed and the object storage service is applied, the object storage management node must be deployed on a node that provides an independent management network port.

When deploying a storage cluster, you need to configure an IP address for the NIC0 interface on the interface board of the c72 node in the cluster

284. The all-flash device controller extension improves the performance of the device through __________ technology

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