Study Online H13-711_V3.0-ENU Exam Dumps to Pass

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August 2, 2023

H13-711_V3.0-ENU dumps questions can help you identify areas where you need to focus your studies. As you answer questions, you will be able to see which topics you are comfortable with and which ones you need to spend more time studying. Huawei H13-711_V3.0-ENU dumps questions provide realistic practice for the certification exam. H13-711_V3.0-ENU dumps are designed to simulate the actual exam environment, and they will give you a chance to practice answering questions under time pressure. Study free Huawei H13-711_V3.0-ENU online dumps below.

Page 1 of 15

1. On the Fusioninsight HD platform, HBase does not currently support secondary indexes.

True

False

2. Which of the following is not a feature of the MapReduce component in Hadoop?

Ease of programming

Good scalability

Real-time computing

High fault tolerance

3. Which of the following statements about Kafka Partition are correct? (Multiple choice)

Introduce the Partition mechanism to ensure the high throughput of Kafka

Each Partition is an ordered and immutable message queue

The number of Partitions determines the maximum number of concurrent consumers in each consumer group

Each Partition corresponds to a log file at the storage level

4. On the FusionInsight Manager interface, when receiving a warning that the capacity of the kafka wiping disk is insufficient, and the cause of the warning has been ruled out as a hard disk hardware failure, the system administrator needs to consider expanding the capacity to solve this problem.

True

False

5. If HDFS is deployed with a single name node, what limitations may exist? (Multiple choices)

The throughput of the entire distributed file system is limited by the throughput of a single name node

It will affect the function realization of the upper layer components based on HDFS

The number of objects (files, blocks) that the name node can hold will be limited by the size of the memory space

Once the only-name node fails, the entire cluster will be unavailable

6. Spark and Hadoop are equally unsuitable for generational computing.

True

False

7. In the Fusioninsight product, which statement about the Kafka component is correct? (Multiple choice)

When creating a Topic, the number of replicas must not be greater than the number of currently surviving Broker instances, otherwise creating a Topic will fail

When Kafka's Producer sends a message, it can specify which Consumer will consume the message

Kafka will store metadata information on Zookeeper

After the Kafka installation is complete, the sensitive data storage directory cannot be configured.

8. The index data of ElasticSearch can only be saved in the HDFS system.

True

False

9. In the MRS platform, which component does the Flume data flow not need to pass through in the node?

Sink

Channel

Topic

Source

10. The checkpoint mechanism in Flink continuously draws snapshots of streaming applications, and the status snapshots of streaming applications can only be saved in the HDFS file system.

True

False

Page 2 of 15

11. Which of the following description about Kafka is wrong?

Used as the basis for activity streams and operational data processing pipelines

Developed by Apache Hadoop and open sourced in 2011

It has the characteristics of information persistence, high throughput, and real-time

Using Scala, Java language implementation

12. Among the following options, which are the processes that MapReduce must have? (Multiple choice)

Combine

Map

Reduce

Partition

13. What is the core module of spark?

spark streaming

spark core

mapreduce

spark sql

14. What modules does the Spark framework include? (Multiple choice)

Spark SQL

Spark Streaming

Spark GraphX

Spark Mllib

15. Which of the following descriptions about Kafka partition offset is wrong?

Consumers track records through (offset, partition, topic)

Uniquely mark a message

offset is a string of type String

The position of each message in the file is called offset (offset)

16. Flume is used to collect data, and the basic unit of data transmitted by the device is?

Split

Block

Event

Packet

17. HBase's BloomFilter is used to filter data.

True

False

18. Spark Streaming has higher real-time performance than Storm.

True

False

19. What methods or interfaces does Loader provide for job management? (Multiple choice)

WEB UI

Linux command line

REST interface

Java API

20. According to how the data flow transmits data between two Transformations, what types of data flow can be divided into? (Multiple choice)

redistributing streams

One-to-one stream

One to many streams

distributing flow

Page 3 of 15

21. Which of the following options belong to the data storage model of Hive?

table

barrel

database

Partition

All above are correct

22. The driven source is that flume periodically and actively acquires data.

True

False

23. The functions of Nimbus in the Streaming architecture include? (Multiple choice)

Monitor task execution status

Task scheduling

Start/shutdown worker process

Resource allocation

24. Which of the following commands downloads a directory/file from HDFS to the local?

dfs -cat

dfs -mkdir

dfs -get

dfs Cput

25. Which of the following options cannot be realized through big data technology?

Business model discovery

Credit Evaluation

Product recommendation

Operational Analysis

26. Which of the following aspects is the compatibility of Flink reflected? (Multiple choice)

Can be mixed with Hadoop's original mappers and reducers

YARN can be used as the resource scheduling manager of the Flink cluster

Ability to use Hadoop formatted input and output

Ability to obtain data locally

27. Which statement about HBase components is correct? (Multiple choice)

is column-oriented

is a NoSQL data

is distributed

Store data in the form of KV

28. Which module in Hadoop is responsible for HDFS data storage?

NameNode

Data Node

ZooKeeper

Job Traoker

29. In creating a Loader job, which of the following steps can set the filter type?

Input settings b. Conversion c. output

Basic information

30. Which of the following is the correct step for row data conversion in Fusioninsight HD?

Load, Transform, Export

Input Setup, Conversion, Output

Load, Transform, Extract

Extraction, transformation, output

Page 4 of 15

31. An Executor of a Spark task can run multiple tasks at the same time

True

False

32. "Group by" in Hive refers to dividing a data set into several small data sets through certain rules, and then grouping data for several small data sets.

True

False

33. A user needs to build a 350-node FusionInsight HD cluster, which planning scheme is the best?

Deployment of management nodes, control nodes, and data nodes in one, Layer 2 networking

Integrated deployment of management nodes and control nodes, independent deployment of data nodes, and Layer 2 networking

Management nodes, control nodes, and data nodes are deployed independently, three-tier networking

Integrated deployment of management nodes and data nodes, independent deployment of control nodes, and Layer 2 networking

34. The figure below shows the storage locations of files A, B, C, and D, where A and B are related, and their storage locations conform to the Colocation same distribution strategy.

True

False

35. Which operations in Hive can be merged? (Multiple choice)

UNION ALL

GROUP BY

SELECT

JOIN

36. The shards index fragmentation of ElasticSearch can break up and distribute index data to different nodes.

True

False

37. Which of the following options are Huawei Cloud MRS advantages? (Multiple choice)

Scalability

High reliability c. high performance

Ease of use

38. Regarding the relationship between Hive and other components of Hadoop, which of the following descriptions is wrong?

Hive finally stores the data in HDFS

Hive is a data warehouse tool for the Hadoop platform

HQL can perform tasks through MapReduce

Hive has a strong dependence on HBase

39. Which of the following are the RESTful request methods of ElasticSearch? (Multiple choice)

Update

Delete

Get

Post

40. There are currently 3 racks, and there is a file that needs to be stored in 3 copies. Copy 1 and copy 2 are stored in the same rack as the client but on different servers. According to the HDFS copy placement strategy, it must be stored in other racks.

True

False

Page 5 of 15

41. In YARN, which of the following tasks is the "slave" node responsible for? (Multiple choice)

Unified management and allocation of all resources in the cluster

Supervise the life cycle management of the Container

Manage logs and ancillary services used by different applications

Monitor the resource usage (memory, CPU, etc.) of each Container

42. In the Flink technical architecture, which of the following is the computing engine for stream processing and batch processing?

Standalone

Runtime

DataStream

FlinkCore

43. Flink supports Local mode and Cluster mode deployment, and other mode deployments are not currently supported.

True

False

44. Which of the following OS versions are recommended to build a Fusioninsight V1R2C60 cluster? (Multiple choice)

SUSE11 SP1/SP2/SP3 for AMD64&lnter64

CentOS6.6

Redhat-6.4-x86_64

RedHat-6.5-x86_64

RedHat-6.7-x86_64

Ubuntu6.3

45. Regarding DataSet, which of the following statements is wrong?

DataSet is a strongly typed collection of domain-specific objects

DataSet can perform most operations without deserialization

DataSet performs sort, filter, shuffle and other operations that need to be deserialized

DataSet is highly similar to RDD, and its performance is better than RDD

46. Which of the following statements about the reliability of Fusioninsight network security is correct? (Multiple choice)

Avoid high load on the service plane from blocking the cluster management channel

Network plane isolation to avoid management and business bandwidth preemption and mutual interference

Prevent external attackers from invading actual business data through management channels

Fusioninsight supports dividing the network into three levels: the cluster service plane, the cluster management plane, and the maintenance network outside the cluster, which are physically isolated from each other.

47. In the FusionInsight HD cluster planning, what kind of scenarios is suitable for the unified deployment of management nodes, control nodes and data nodes?

Below 30 nodes

More than 100 nodes

100-200 nodes

More than 200 nodes

48. What services can Huawei MRS provide to customers? (Multiple choice)

Multi-node deployment

Statistical Analysis and Data Mining

Security Control Based on Kerberos Certificate

Offline and real-time data processing

49. Which of the following is not a state store supported by Flink?

FsStateBackend

RocksDBStateBackend

MemoryStateBackend

FileStateBackend

50. Which of the following services provided by Zookeeper does Streaming implement event listening?

Distributed detection mechanism

ACK

Watcher

Checkpoint

Page 6 of 15

51. Which of the following are conversion rules supported by Loader jobs? (Multiple choice)

Modulo conversion

Null conversion

Splicing conversion

Add a constant field

52. In Hive, which of the following descriptions about partitions is wrong?

There can be partitions or buckets under the partition

The data table can be partitioned according to the value of a field

Each partition is a directory

The number of partitions is fixed

53. The Streaming of Fusioninsight HD is weakly dependent on Zookeeper, even if Zookeeper fails, Streaming can provide services normally.

True

False

54. When FusionInsight HD products deploy Kerberos and LDAP services, which of the following descriptions is correct? (Multiple choice)

Before deploying the Kerberos service, the LDAP service must be deployed first

The LDAP service must be deployed on the same node as the Kerberos service

Deploying Kerberos service and LDAP service on the same node facilitates data access and performance improvement

LDAP service can be shared by multiple clusters

55. If the physical memory utilization of some Containers exceeds the configured memory threshold, but the total memory utilization of all Containers does not exceed the set Node Manager memory threshold, then the Container with excessive memory usage can still continue to run.

True

False

56. Among the Kerberos service roles, KerberosServer mainly provides the authentication function, and KerberosAdmin mainly provides the user management function.

True

False

57. Hive in Fusioninsight includes two roles, HiveServer and MetaStore.

True

False

58. The following provides a variety of Redis optimization methods, which option is wrong?

Simplified key names and key values

Turn off Transparent Huge Pages

Modify the minimum number of tcp connections in Linux

Modify the Linux kernel memory allocation strategy or execute sysctl

59. What are the key features of Streaming in Huawei's big data product Fusioninsight HD? (Multiple choice)

Flexibility

Scalability

Disaster tolerance

Message reliability

60. Which of the following options are the advantages of Fusioninsight Spark SQL?

Support data insertion, update and deletion

Long-term stability test

Stable and high performance

SQL Compatibility

All of the above are correct

Page 7 of 15

61. Which of the following functions can the Shell script of Loader achieve? (Multiple choice)

View job status

Start the job

stop working

Data source query

62. In the copy placement strategy of HDFS, what is the distance between different servers in the same rack?

63. Watermark is a mechanism proposed by Apache Flink to deal with EventTime window calculation, which is essentially a timestamp.

True

False

64. The main role of Zookeeper in distributed applications does not include which of the following options?

Election of Master nodes

Ensure data consistency on each node

Allocate cluster resources

Store server information in the cluster

65. Which of the following is not a mandatory option when creating a Loader job?

name

connection

type

Priority

66. Which statement about DataNode of HDFS in Huawei Fusioninsight HD system is correct?

Does not check data validity

Periodically send Block related information of this node to NameNode

Blocks stored by different DataNodes must be different

Blocks on a DataNode can be the same

67. Channel supports transactions, provides weak order guarantees, and can connect any number of Sources and Sinks.

True

False

68. What is the physical storage unit of Region in Hbase?

Region

ColumnFamily

Column

Row

69. Which of the following functions can the Kafka Cluster Mirroring tool achieve?

Kafka cross-cluster data synchronization scheme

Data backup in Kafka single cluster

Kafka but data recovery within the cluster

None of the above is correct

70. Synchronize data between partition replication in Kafka. Copying data from the leader of the partition to the follower requires a thread (replicationFetcherThread), and the follower (a follower is equivalent to a consumer) actively pulls messages from the leader in batches, which greatly improves the throughput.

True

False

Page 8 of 15

71. In the task scheduling of YARN. Once the Application Master applies for resources, it communicates with the corresponding Resource Manager and asks it to start the task

True

False

72. In the FusionInsight HD system, using the Streaming client Shell command to view the topology or submit the topology fails. Which of the following positioning methods is correct? (Multiple choice)

Check the Supervisor operation log to determine whether the Supervisor is abnormal

Check the worker running log

Check the client exception stack to determine whether the client is using the problem

Check the running log of the main nimbus to determine whether the nimbus server is abnormal

73. Which of the following statements about ZKFC is wrong?

ZKFC (ZKFailoverController) is used as a client of Zookeeper cluster to monitor the status information of NameNode

The ZKFC process needs to be deployed in the NameNode node and Zookeeper's Leader node

The Standby NameNode perceives the status of the Active NameNode through Zookeeper. Once the Active NameNode goes down, the Standby NameNode will perform the master promotion operation

The ZKFC of HDFS NameNode connects to Zookeeper, and saves information such as the host name in Zookeeper

74. In the Fusioninsight product, which of the following descriptions about the kafka topic is wrong?

Each Topic can only be divided into one partition (area)

The number of partitions of Topic can be configured at the time of creation

The storage level of each Partition corresponds to a log file, and all information data is recorded in the log file

Each message published to Kafka has a category. This category is called Topic, which can also be understood as a queue for storing messages.

75. Which fields can the balance algorithm of ElasticSearch be applied to? (Multiple choice)

Import data

Export data

Volume reduction

Expansion

76. What data will Fusionlnsight Manager regularly back up? (Multiple choice)

NameNode

LDAP Server

OMS

DBService

77. In the Spark SQL table, there are often many small files (the size is much smaller than the HDFS block size). In this case, Spark will start more Tasks to process these small files. When there is a Shuffle operation in the SQL logic, It will greatly increase the number of hash buckets, which will seriously affect performance.

True

False

78. In the Fusioninsight HD system, which LDAP data synchronization method is used?

One-way synchronization

Two-way synchronization

Isolation is out of sync

Data cross synchronization

79. Which of the following measures are used to protect the integrity of data? (Multiple choice)

Metadata Reliability Assurance

Rebuild the copy data of the failed data disk

Safe Mode

Cluster data balance

80. The data node is the working node of HDFS. What are its functions described below? (Multiple choice)

Responsible for data storage and reading

Store and retrieve data according to the scheduling of the client or the name node

Records all operations on file creation, deletion, renaming, etc.

Periodically send the name node a list of the blocks it stores.

Page 9 of 15

81. The default snapshot method of Redis is AOF.

True

False

82. In order to improve the fault tolerance of Kafka, Kafka supports partition replication strategy. Which of the following descriptions about Leader partition and Follower partition is wrong?

It is impossible for each node of a kafka cluster to be the leader and flower of each other

If the leader fails, another follower will take over (become the new leader)

Since the leader Server bears all the request pressure, considering the overall cluster, Kafka will evenly distribute the leader to each instance to ensure the overall stable performance

Kafka needs to select a leader for the replication of the partition. The leader is responsible for the read and write operations of the partition, and the other replica nodes are only responsible for data synchronization.

83. What are the main features of HBase? (Multiple choice)

High reliability b. high performance

Column-oriented

scalable

84. Which of the following are enterprise-level big data application scenarios? (Multiple choice)

Internal Operations Management

Supply chain management

Customer Analysis

Marketing Analysis

85. In Huawei's big data solution, LadpServer is used as a directory service system, which can realize centralized management of accounts on the big data platform. Which of the following statement about LdapServer is correct?

LdapServer supports TCP/IP protocol.

LdapServer is a specific open source implementation based on the LDAP standard protocol.

LdapServer uses Berkelay DB as the default backend database.

LdapServer is implemented based on OpenLDAP open source technology.

86. Which of the following are the actual application scenarios of Kafka? (Multiple choice)

Log Collection

Site Activity Tracking

Resource management

Aggregated Statistical System Operational Data

87. What are the successful cases of Huawei Fusioninsight HD in the industry? (Multiple choice)

Digital government

Smart Park

Intelligent transportation

Finance

88. Assume that the minimum resource guarantee for each user is set to YARN.scheduler.capacity.root.QueueA.minimum-

User-limit-percent=25, then which of the following statement is wrong?

When the fourth user submits a task, each user can get up to 25% of the resources

When the second user submits a task, each user can get up to 50% of the resources

When the third user submits the task, each user can get up to 33.33% of the resources

When the fifth user submits a task, each user can get up to 20% of the resources

89. The Kunpeng computing industry is a full-stack IT infrastructure, industry applications and services built on the basis of Kunpeng processors, including PCs, servers, storage, operating systems, middleware, virtualization, databases, cloud services, industry applications, and consulting management services wait.

True

False

90. In the Fusioninsight HD system, HBase supports dynamic expansion of columns.

True

False

Page 10 of 15

91. Which of the following descriptions about the key features of Flink is wrong?

Compared with Flink, SparkStreaming has lower latency

The Flink stream processing engine can provide support for both stream processing and batch processing applications

Compared with Streaming in FusionInght HD, Flink has higher throughput

checkpoint implements Flink's fault tolerance

92. Which of the following options are suitable for MapReduce?

Offline Computing

Real-time interactive computing

Iterative calculation

Stream computing

93. "Group by" in Hive refers to dividing each data set into several small data sets through certain rules, and then grouping data for several small data sets

True

False

94. User Rights Management Role-Based Access Control (RBAC) provides visualized multi-group unified user rights management in the cluster.

True

False

95. Multiple channels can be configured in the properties.protertises configuration file of Flume to transmit data.

True

False

96. ElasticSearch is strongly dependent on Zookeeper.

True

False

97. Which of the following is wrong understanding of the BloomFilter feature of HBase?

Used to filter data

Used to optimize random read performance

It will increase storage consumption

It can be accurately judged that a piece of data does not exist

98. Spark divides the stages according to the dependencies of RDDs. The scheduler starts from the end of the DAG graph and traverses the entire dependency chain in reverse. When it encounters narrow dependencies, it disconnects, and when it encounters wide dependencies, it adds them to the current stage.

True

False

99. Which is not the channel type of Flume?

Memory Channel

File Channel

JDBC Channel

HDFS Channel

100. Structured Streaming can define different data writing methods in the Output stage, including which of the following methods? (Multiple choice)

Append Mode

Update Mode

General Mode

Complete Mode

Page 11 of 15

101. Which service process is the Region of HBase managed by?

DataNodes

ZooKeeper

HMaster

HRegionServer

102. Which of the following descriptions about the characteristics of Zookeeper is wrong?

Updates sent by the client are applied in the order they were sent

If a message is received by more than half of the servers, it will be successfully written to the disk

Message updates can only succeed or fail, there is no intermediate state

The number of Zookeeper nodes must be an odd number

103. Which two roles are responsible for the active and standby state management of the NameNode node and the merging of metadata files in HDFS?

ZKFC and Standby NameNode

Active NameNode and Standby NameNode

ZKFC and master NameNode

Primary NameNode and JournalNode

104. In the Fusioninsight Hadoop cluster, through df-hT query on a certain node, the partitions seen include the following:

/var/log

/srv/BigData

/srv/BigData/hadoop/data5

/srv/BigData/solr/solrserver3

/srv/BigData/dbdataom

What is the planning combination of the optimal Raid level for the disks corresponding to these partitions?

Raid0 Raid1 Raid0 Non-Raid1

Raid1 Raid1 Non-Raid Non-Raid Raid1

Raid0 Raid0 Raid0 Raid0 Raid0

Non-Raid Non-Raid Non-Raid Non-Raid Raid1

105. Which of the following descriptions about Zookeeper features is wrong?

The number of Zookeeper nodes must be an odd number.

Updates sent by the client are applied in the order in which they were sent.

Message update can only succeed or fail, there is no intermediate state.

A message must be received by more than half of the servers. It will be successfully written to disk

106. In the FusininsightHD platform, which components support list encryption? (Multiple choice)

HDFS

Flink

HBase

Hive

107. What components does HBase use by default as its underlying file storage system?

File

Kafka

Memory

HDFS

108. What is the purpose of the HBase cluster regularly executing Compaction? (Multiple choice)

Reduce the number of files under the same ColumnFamily in the same Region

Reduce the number of files in the same Region

Improve data reading performance

Improve data writing ability

109. When a MapReduce task fails, the task can be recalculated through the retry mechanism.

True

False

110. In the task scheduling process of YARN, which of the following tasks is the responsibility of the Application Master?

Applying for and receiving resources

Set up the running environment for the task

Allocate Containers

Start the Map or Reduce task

Page 12 of 15

111. Assuming that the amount of data is about 200GB, and the maximum capacity of shards is limited to 30GB, what is the maximum number of shards that should be designed?

9 or 10

7 or 8

3 or 4

5 or 6

112. Which of the following indicators belong to flume data monitoring? (Multiple choice)

Source receives data volume

Amount of data written by Sink

Number of DataNodes

Channel cache data volume

113. In Fusioninsight products, which of the following descriptions are correct about creating Kafka topics?

When creating a Kafka Topic, the number of Partitions must be set

When creating a Kafka Topic, you must set the number of Partition copies

Setting up multiple copies can enhance the disaster recovery capability of Kafka service

All of the above are correct

114. Among the following options, which one is a key feature of the HDFS architecture? (Multiple choice)

Robust mechanisms

Multimodal Access Mechanisms

HA high reliability

Metadata persistence mechanism

115. Which service process is used to manage the Region of HBase in the Hadoop platform?

HMaster

DataNodes

RegionServer

Zookeeper

116. When the Spark application is running, what is the basis for Stage division?

task

taskSet

action

shuffle

117. Batch processing of high-value and highly aggregated information and knowledge is the main business appeal of the big data industry

True

False

118. When the client writes data to any Zookeeper node, Zookeeper needs to fully synchronize the data to other nodes before it can return to the client that the write is successful.

True

False

119. Which of the following are Redis optimization methods? (Multiple choice)

Thin key-value

Turn off persistence

Limit Redis memory size

slowlog configuration

120. In the Loader of Fusioninsight HD, one connector can only be assigned to one job.

True

False

Page 13 of 15

121. Flink can not only provide real-time computing that supports high throughput and exactly-once semantics, but also batch data processing.

True

False

122. The LdapServer in Huawei's big data platform can support different types of operations such as query, update, and authentication.

True

wrong

123. When importing data into the Hive table, the legality of the data will not be checked, but only when the data is read.

True

False

124. Which component controls the active/standby arbitration in HDFS?

Zookeeper Failover Controller

Node Manager

Resource Manager

HDFS Client

125. It is used to record the reading position of the message in Kafka ().

126. In the YARN service, if the capacity of the queue QuqueA is to be set to 30%, which parameter should be configured?

YAR

scheduler.capacity.root.Queue

user-limit-factor

YAR

scheduler.capacity.root.Queue

minimum-user-limit-percent

YAR

scheduler.capacity.root.Queue

capacity

YAR

scheduler.capacity.root.Queue

state

127. Which of the following descriptions about the data management and architecture faced by traditional enterprises is correct? (Multiple choice)

The operation and maintenance of massive data needs to ensure data stability, support high concurrency and increase server load.

Traditional databases do not consider the diversity of data, especially compatible with structured data, unstructured data and semi-structured data.

Traditional databases are not suitable for processing PB-level data.

Traditional databases do not require high data processing time, while big data requires real-time data processing

128. In Spark on YARN mode, the node without NodeManager cannot start the executor to execute the Task

True

False

129. In the WebHCat architecture, which of the following operations can users perform through the secure HTTPS protocol?

Execute Hive DDL operations

Running MapReduce tasks

Run the Hive HQL task

All of the above are correct

130. Which of the following scenarios is HDFS not suitable for? (Multiple choice)

Streaming data access

Large number of small file storage

Large file storage and access

Random write

Page 14 of 15

131. During operation, the Kafka cluster directly depends on which of the following components?

Zookeeper

HDFS

Spark

HBase

132. 1. Among the big data computing tasks, which of the following description of IO-intensive tasks is wrong?

During the execution of IO-intensive tasks, most of the time is spent on IO

By improving network transmission efficiency and read-write efficiency, performance can be greatly improved

High CPU consumption

The more tasks, the higher the CPU efficiency

133. Flume supports monitoring and transferring new files in the directory, which can realize data transfer. Which type of source is described above?

spooling directory source

http source

exec source

syslog source

134. Which of the following descriptions about Hive features is wrong?

Flexible and convenient ETL

Only supports MapReduce computing engine

Can directly access HDFS files and HBase

Easy to use and easy to program

135. Regarding the comparison between Hive and traditional data warehouses, which of the following descriptions is wrong?

Hive metadata storage is independent of data storage, thereby decoupling metadata and data, with high flexibility, while traditional data warehouses have single data applications and low flexibility

Hive is based on HDFS storage, theoretically, the storage capacity can be expanded infinitely, while the storage capacity of traditional data warehouses will have an upper limit

Since Hive data is stored in HDFS, it can guarantee high fault tolerance and high reliability of data

Since Hive is based on a big data platform, the query efficiency is faster than traditional data warehouses

136. HDFS supports large file storage, and supports multiple users to write to the same file at the same time, and to modify any position of the file.

True

False

137. Which application scenarios are HBase not suitable for?

High throughput application scenarios

Application scenarios that require full ACID characteristics

Semi-structured data application scenarios

Massive data (TB, PB) application scenarios

138. Which of the following descriptions of cloud search service CSS is correct? (Multiple choice)

The business of expanding nodes and disks is not interrupted, and the business of updating the dictionary is not interrupted

Compatible with Elasticsearch APIs

Does not support the fusion search of rich text and text such as sound

TB-level data retrieval is returned in seconds, and billion-level 100-dimensional star retrieval is returned in seconds

139. As a distributed message system, Kafka supports online and offline message processing, and provides a java API for other components to connect and use. In the Fusioninsight solution, Kafka belongs to the Fusionlnsight HD module.

True

False

140. YARN manages cluster resources through Resource Manager. Its main functions are? (Multiple choice)

Cluster resource scheduling

Application Management

Log management

None of the above statements are true

Page 15 of 15

141. In the Fusionlnsight HD cluster, the cluster scale currently has 300 nodes. If the recommended deployment scheme is adopted, which partitions must not exist on the control node? (Multiple choice)

/srv/BigData/dbdata_om

/srv/BigData

/srv/Bigdata/umatnode

/srv/Bigdata/hadoop/data5

142. The MOB data in HBase is directly stored in HFile format on HDFS, and then the address information and size information of this file are stored as value on the store that manages HBase, and these files are managed centrally through tools. In this way, the compation and split frequency of HBase can be greatly reduced and the performance can be improved.

True

False

143. Tez is a distributed computing frame that supports directed acyclic graphs. When Hive uses the Tez engine for data analysis, it will parse the HQL statement submitted by the user into the corresponding Tez task and submit it to Tez for execution.

True

False

144. In order to reduce the amount of data written to disk, mapreduce supports compressing MOF (mapoutfile) before writing.

True

False

145. Fusioninsight is Huawei's unified platform for enterprise-level big data storage, query, and analysis. It can help enterprises quickly build massive data information processing systems, and discover new value points and business opportunities through real-time and non-real-time analysis and mining of massive information data.

True

False

146. Flink is a computing framework combining batch processing and stream processing. Its core is a stream data processing engine for data classification and parallel computing.

True

False

147. Fusioninsight Manger supports external REST interface, SNMP interface, and SYSLOG interface.

True

False

148. In Flink, the checkpoint mechanism can ensure that when the application fails during operation, it recovers from a certain checkpoint. During this process, stream snapshots are created sequentially according to the order of data inflow.

True

False

149. FLINK uses the checkpoint mechanism to ensure the fault tolerance of the application program.

True

False

150. When installing a Fusionlnsight HD cluster in safe mode, which components must be installed? (Multiple choice)

Zookeeper

LDAP Server

Krb Server

HDFS

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