2023 HP HPE6-A84 Exam Dumps Questions

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September 25, 2023

HP certification is a highly valuable and sought-after certification for IT professionals seeking to enhance their knowledge and expertise. HPE6-A84 exam is specifically designed to validate the skills required to configure and maintain the Aruba Certified Design Expert (ACDX) V8 platform, which is widely used by businesses around the world. These HPE6-A84 exam dumps questions are specifically designed to help you prepare for the exam by testing your knowledge and providing you with valuable insights into the types of questions that you will encounter. Test free HP HPE6-A84 exam questions below.

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1. Refer to the scenario.

A customer requires these rights for clients in the “medical-mobile” AOS firewall role on Aruba Mobility Controllers (MCs):

Permitted to receive IP addresses with DHCP

Permitted access to DNS services from 10.8.9.7 and no other server

Permitted access to all subnets in the 10.1.0.0/16 range except denied access to 10.1.12.0/22

Denied access to other 10.0.0.0/8 subnets

Permitted access to the Internet

Denied access to the WLAN for a period of time if they send any SSH traffic

Denied access to the WLAN for a period of time if they send any Telnet traffic

Denied access to all high-risk websites

External devices should not be permitted to initiate sessions with “medical-mobile” clients, only send return traffic.

The exhibits below show the configuration for the role.

There are multiple issues with this configuration.

What is one change you must make to meet the scenario requirements? (In the options, rules in a policy are referenced from top to bottom. For example, “medical-mobile” rule 1 is “ipv4 any any svc-dhcp permit,” and rule 8 is “ipv4 any any any permit”.)

In the “medical-mobile” policy, move rules 2 and 3 between rules 7 and 8.

In the “medical-mobile” policy, change the subnet mask in rule 3 to 255.255.248.0.

Move the rule in the “apprf-medical-mobile-sacl” policy between rules 7 and 8 in the “medical-mobile” policy.

In the “medical-mobile” policy, change the source in rule 8 to “user.”

2. How does Aruba Central handle security for site-to-site connections between AOS 10 gateways?

It uses an Aruba proprietary integrity and encryption technologies to secure site-to-site connections, making them resistant to zero day attacks.

It automatically establishes IPsec tunnels for all site-to-site (all HUBs and Branches) connections using keys securely distributed by Central.

It automatically steers traffic away from Internet-based connections to more secure MPLS connections to reduce encryption overhead.

It automatically establishes simple-to-manage and highly secure TLSv1.3 tunnels between gateways.

3. Refer to the scenario.

A customer is migrating from on-prem AD to Azure AD as its sole domain solution. The customer also manages both wired and wireless devices with Microsoft Endpoint Manager (Intune).

The customer wants to improve security for the network edge. You are helping the customer design a ClearPass deployment for this purpose. Aruba network devices will authenticate wireless and wired clients to an Aruba ClearPass Policy Manager (CPPM) cluster (which uses version 6.10).

The customer has several requirements for authentication. The clients should only pass EAP-TLS authentication if a query to Azure AD shows that they have accounts in Azure AD. To further refine the clients’ privileges, ClearPass also should use information collected by Intune to make access control decisions.

You are planning to use Azure AD as the authentication source in 802.1X services.

What should you make sure that the customer understands is required?

An app registration on Azure AD that references the CPPM's FQDN

Windows 365 subscriptions

CPPM's RADIUS certificate was imported as trusted in the Azure AD directory

Azure AD Domain Services

4. A customer's admins have added RF Protect licenses and enabled WIDS for a customer's AOS 8-based solution. The customer wants to use the built-in capabilities of APs without deploying dedicated air monitors (AMs). Admins tested rogue AP detection by connecting an unauthorized wireless AP to a switch. The rogue AP was not detected even after several hours.

What is one point about which you should ask?

Whether APs’ switch ports support all the VLANs that are accessible at the edge

Whether admins enabled wireless containment

Whether admins set at least one radio on each AP to air monitor mode

Whether the customer is using non-standard Wi-Fi channels in the deployment

5. Refer to the scenario.

A customer has an Aruba ClearPass cluster. The customer has AOS-CX switches that implement 802.1X authentication to ClearPass Policy Manager (CPPM).

Switches are using local port-access policies.

The customer wants to start tunneling wired clients that pass user authentication only to an Aruba gateway cluster. The gateway cluster should assign these clients to the “eth-internet" role. The gateway should also handle assigning clients to their VLAN, which is VLAN 20.

The plan for the enforcement policy and profiles is shown below:

The gateway cluster has two gateways with these IP addresses:

• Gateway 1

o VLAN 4085 (system IP) = 10.20.4.21

o VLAN 20 (users) = 10.20.20.1

o VLAN 4094 (WAN) = 198.51.100.14

• Gateway 2

o VLAN 4085 (system IP) = 10.20.4.22

o VLAN 20 (users) = 10.20.20.2

o VLAN 4094 (WAN) = 198.51.100.12

• VRRP on VLAN 20 = 10.20.20.254

The customer requires high availability for the tunnels between the switches and the gateway cluster. If one gateway falls, the other gateway should take over its tunnels. Also, the switch should be able to discover the gateway cluster regardless of whether one of the gateways is in the cluster.

Assume that you are using the “myzone” name for the UBT zone.

Which is a valid minimal configuration for the AOS-CX port-access roles?

port-access role eth-internet gateway-zone zone myzone gateway-role eth-user

port-access role internet-only gateway-zone zone myzone gateway-role eth-internet

port-access role eth-internet gateway-zone zone myzone gateway-role eth-internet vlan access 20

port-access role internet-only gateway-zone zone myzone gateway-role eth-internet vlan access 20

6. A customer has an AOS 10 architecture, which includes Aruba APs. Admins have recently enabled WIDS at the high level.

They also enabled alerts and email notifications for several events, as shown in the exhibit.

Admins are complaining that they are getting so many emails that they have to ignore them, so they are going to turn off all notifications.

What is one step you could recommend trying first?

Send the email notifications directly to a specific folder, and only check the folder once a week.

Disable email notifications for Rogue AP, but leave the Infrastructure Attack Detected and Client Attack Detected notifications on.

Change the WIDS level to custom, and enable only the checks most likely to indicate real threats.

Disable just the Rogue AP and Client Attack Detected alerts, as they overlap with the Infrastructure Attack Detected alert.

7. Which element helps to lay the foundation for solid network security forensics?

Enable BPDU protection and loop protection on edge switch ports

Enabling debug-level information for network infrastructure device logs

Implementing 802.1X authentication on switch ports that connect to APs

Ensuring that all network devices use a correct, consistent clock

8. A customer has an AOS 10 architecture, consisting of Aruba AP and AOS-CX switches, managed by Aruba Central. The customer wants to obtain information about the clients, such as their general category and OS.

What should you explain?

The customer must deploy Aruba gateways in order to receive any client profiling information.

You will need to set up Aruba Central as a secondary IP helper for client VLANs, but this will not interfere with existing operations.

Aruba Central will automatically derive this information using telemetry from the Aruba devices.

The customer should set up a dedicated switch VSX group to sniff packets and direct them to Aruba Central.

9. What is a common characteristic of a beacon between a compromised device and a command and control server?

Use of IPv6 addressing instead of IPv4 addressing

Lack of encryption

Use of less common protocols such as SNAP

Periodic transmission of small, identically sized packets

10. Refer to the scenario.

A customer has asked you to review their AOS-CX switches for potential vulnerabilities.

The configuration for these switches is shown below:

What is one immediate remediation that you should recommend?

Changing the switch’s DNS server to the mgmt VRF

Setting the clock manually instead of using NTP

Either disabling DHCPv4-snooping or leaving it enabled, but also enabling ARP inspection

Disabling Telnet

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11. A company has an Aruba ClearPass server at 10.47.47.8, FQDN radius.acnsxtest.local. This exhibit shows ClearPass Policy Manager's (CPPM's) settings for an Aruba Mobility Controller (MC).

The MC is already configured with RADIUS authentication settings for CPPM, and RADIUS requests between the MC and CPPM are working. A network admin enters and commits this command to enable dynamic authorization on the MC: aaa rfc-3576-server 10.47.47.8

But when CPPM sends CoA requests to the MC, they are not working.

This exhibit shows the RFC 3576 server statistics on the MC:

How could you fix this issue?

Change the UDP port in the MCs’ RFC 3576 server config to 3799.

Enable RadSec on the MCs’ RFC 3676 server config.

Configure the MC to obtain the time from a valid NTP server.

Make sure that CPPM is using an ArubaOS Wireless RADIUS CoA enforcement profile.

12. Refer to the scenario.

A customer has an AOS10 architecture that is managed by Aruba Central. Aruba infrastructure devices authenticate clients to an Aruba ClearPass cluster.

In Aruba Central, you are examining network traffic flows on a wireless IoT device that is categorized as “Raspberry Pi” clients. You see SSH traffic. You then check several more wireless IoT clients and see that they are sending SSH also.

You want an easy way to communicate the information that an IoT client has used SSH to Aruba ClearPass Policy Manager (CPPM).

What step should you take?

On CPPM create an Endpoint Context Server that points to the Central AP

On CPPM enable Device Insight integration.

On Central configure APs and gateways to use CPPM as the RADIUS accounting server.

On Central set up CPPM as a Webhook application.

13. Refer to the scenario.

A customer has an Aruba ClearPass cluster. The customer has AOS-CX switches that implement 802.1X authentication to ClearPass Policy Manager (CPPM).

Switches are using local port-access policies.

The customer wants to start tunneling wired clients that pass user authentication only to an Aruba gateway cluster. The gateway cluster should assign these clients to the “eth-internet" role. The gateway should also handle assigning clients to their VLAN, which is VLAN 20.

The plan for the enforcement policy and profiles is shown below:

The gateway cluster has two gateways with these IP addresses:

• Gateway 1

o VLAN 4085 (system IP) = 10.20.4.21

o VLAN 20 (users) = 10.20.20.1

o VLAN 4094 (WAN) = 198.51.100.14

• Gateway 2

o VLAN 4085 (system IP) = 10.20.4.22

o VLAN 20 (users) = 10.20.20.2

o VLAN 4094 (WAN) = 198.51.100.12

• VRRP on VLAN 20 = 10.20.20.254

The customer requires high availability for the tunnels between the switches and the gateway cluster. If one gateway falls, the other gateway should take over its tunnels. Also, the switch should be able to discover the gateway cluster regardless of whether one of the gateways is in the cluster.

Assume that you have configured the correct UBT zone and port-access role settings. However, the solution is not working.

What else should you make sure to do?

Assign VLAN 20 as the access VLAN on any edge ports to which tunneled clients might connect.

Create a new VLAN on the AOS-CX switch and configure that VLAN as the UBT client VLA

Assign sufficient VIA licenses to the gateways based on the number of wired clients that will connect.

Change the port-access auth-mode mode to client-mode on any edge ports to which tunneled clients might connect.

14. Refer to the exhibit.

Aruba ClearPass Policy Manager (CPPM) is using the settings shown in the exhibit. You reference the tag shown in the exhibit in enforcement policies related to NASes of several types, including Aruba APs, Aruba gateways, and AOS-CX switches.

What should you do to ensure that clients are reclassified and receive the correct treatment based on the tag?

Change the RADIUS action to [Aruba Wireless C Terminate Session] which is supported by all the NASes in question.

Change the RADIUS action to [Aruba Wireless C Bounce Switch Port] which is supported by all the NASes in question.

Enable profiling in each service using one of these enforcement profiles. Set the profiling action to the correct one for the NASes using that service.

Set the Tags Update Action to No Action. Then instead enable the RADIUS CoAs using enforcement profiles in the rules that match clients with the tag shown in the exhibit.

15. Refer to the scenario.

A customer is migrating from on-prem AD to Azure AD as its sole domain solution. The customer also manages both wired and wireless devices with Microsoft Endpoint Manager (Intune).

The customer wants to improve security for the network edge. You are helping the customer design a ClearPass deployment for this purpose. Aruba network devices will authenticate wireless and wired clients to an Aruba ClearPass Policy Manager (CPPM) cluster (which uses version 6.10).

The customer has several requirements for authentication. The clients should only pass EAP-TLS authentication if a query to Azure AD shows that they have accounts in Azure AD. To further refine the clients’ privileges, ClearPass also should use information collected by Intune to make access control decisions.

The customer wants you to configure CPPM to collect information from Intune on demand during the authentication process.

What should you tell the Intune admins about the certificates issued to clients?

They must be issued by a well-known, trusted C

They must include the Intune ID in the subject name.

They must include the client MAC address in the subject name.

They must be issued by a ClearPass Onboard C

16. You are configuring gateway IDS/IPS settings in Aruba Central.

For which reason would you set the Fail Strategy to Bypass?

To permit traffic if the IPS engine falls to inspect It

To enable the gateway to honor the allowlist settings configured in IDS/IPS policies

To tell gateways to stop enforcing IDS/IPS policies if they lose connectivity to the Internet

To avoid wasting IPS engine resources on filtering traffic for unauthenticated clients

17. Refer to the scenario.

A customer has an AOS10 architecture that is managed by Aruba Central. Aruba infrastructure devices authenticate clients to an Aruba ClearPass cluster.

In Aruba Central, you are examining network traffic flows on a wireless IoT device that is categorized as “Raspberry Pi” clients. You see SSH traffic. You then check several more wireless IoT clients and see that they are sending SSH also.

You want a fast way to find a list of all the IoT clients that have used SSH.

What step can you take?

Create and apply a Central client profile tag that selects the SSH application and the clients’ category.

Run a search for SSH traffic and IoT client IDs in Aruba ClearPass Policy Manager’s (CPPM’s) accounting information.

Use Central’s Live Events monitoring tool to detect which clients meet the desired criteria.

Use Central’s Gateway IDS/IPS Security Dashboard to search for SSH events and sources.

18. When would you implement BPDU protection on an AOS-CX switch port versus BPDU filtering?

Use BPDU protection on edge ports to protect against rogue devices when the switch implements MSTP; use BPDU filtering to protect against rogue devices when the switch implements PVSTP+.

Use BPDU protection on edge ports to prevent rogue devices from connecting; use BPDU filtering on inter-switch ports for specialized use cases.

Use BPDU protection on inter-switch ports to ensure that they are selected as root; use BPDU filtering on edge ports to prevent rogue devices from connecting.

Use BPDU protection on edge ports to permanently lock out rogue devices; use BPDU filtering on edge ports to temporarily lock out rogue devices.

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2023 HP HPE6-A84 Exam Dumps Questions

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