HP HPE7-A08 Exam Questions Instant Access

Question 1

You have been tasked to ensure that audit logs on mobility gateways contain accurate timestamps, keeping security in mind. Which configuration change would best secure the time clock against attacks?

AModify the ACL AllowList to deny NTP

BTurn on Use NTP authentication toggle and set the parameters

CUse an ACL in the communication path

DModify the audit log timezone to match the mobility gateways

Answer : B

Question 2

A customer wants to prevent 'man-in-the-middle' attacks based on Layer 2 addressing. What will help address that concern?

AEnable ARP inspection in the VLAN interface context

BEnable ARP inspection in the VLAN context

CEnable ARP inspection in the global context

DEnable ARP inspection in interface-level context

Answer : B

Comprehensive Detailed Explanation:

To prevent man-in-the-middle attacks based on Layer 2 (Ethernet) addressing, enabling ARP inspection in the VLAN context is recommended. ARP inspection validates ARP packets and ensures only legitimate ARP responses are forwarded.

Enabling ARP inspection at VLAN level allows granular control.

Interface-level or global context is less typical or supported for ARP inspection on Aruba CX switches.

ArubaOS-CX Security Features Guide

HPE Aruba ARP Inspection Best Practices

Network Security Documentation for Aruba CX Switches

Question 3

You are troubleshooting a WLAN deployment with APs and gateways set up with an 802.1X tunneled SSID. End-users are complaining that they can't connect to the enterprise SSID. Which possible AP tunnel states could be the cause of the issue? (Select two.)

ASM_STATE_CONNECTING

BSM_STATE_SURVIVED

CSM_STATE_SURVIVING

DSM_STATE_CONNECTED

ESM_STATE_REKEYING

Answer : A, C

Question 4

Refer to the exhibit.

A customer is reporting that connectivity is failing for some wireless client devices. What is your conclusion based on the capture?

AThe client does not have an ARP entry for the default gateway

BThe SSID is using WPA3-Enterprise key management

CThe client has not obtained an IP address on this network previously

DThe AP is using 20MHz wide 5GHz channels

Answer : A

Question 5

In a campus topology using VSX with two aggregation switches and downlinks to access switches, which LAG interface configuration at the aggregation layer is correct based on the parameters below?

ZTP VLAN 1001

access switch MGMT VLAN 2002

access switch MGMT VLAN is tagged

connectivity to the access switch should be maintained before and after the ZTP operation is complete

AOption A

BOption B

COption C

DOption D

Answer : A

Question 6

A customer's infrastructure is set up to use both primary and secondary gateway clusters on the SSID profile based on best practices. Why do they have an equal split of their 260 APs across the primary and secondary gateway clusters?

AThe primary gateway cluster is up, but some APs cannot reach the secondary gateway cluster. These APs would connect to the secondary gateway cluster

BThe secondary gateway cluster is homogeneous

CThe secondary gateway cluster is heterogeneous

DThe primary gateway cluster is up, but some APs cannot reach the primary gateway cluster. These APs would connect to the secondary gateway cluster

Answer : D

Question 7

You have applied the following OSPF configuration but are seeing the output from the command below. What is the reason for this?

AA loopback interface hasn't been configured on Agg-2

BOSPF interfaces are passive by default

CA different OSPF process ID is used on each switch

DA Layer-3 interface has not been associated with a VRF

Answer : D

The question concerns an OSPF configuration where the interface does not come up as expected.

Common reasons for no OSPF adjacency or interface participation include:

Interfaces being passive (no adjacency formed)

Mismatched OSPF process IDs

Missing loopback interfaces (for router ID)

Layer-3 interfaces not associated with VRFs when VRFs are configured

Option D (a Layer-3 interface has not been associated with a VRF) is the root cause because in Aruba CX switches, when VRF is configured, all Layer-3 interfaces that participate in OSPF must be associated with the correct VRF instance to establish adjacency and participate correctly.

If an interface is not part of the VRF configured for OSPF, it will not appear in the OSPF interface list or form neighbors.

ArubaOS-CX VRF and OSPF configuration guides

OSPF troubleshooting guides on Aruba CX switches

Aruba Network Design Best Practices documents

HPE Network Switching Professional HPE7-A08 Exam Questions