Practice Free HPE7-A08 Exam Online Questions
Which CLI command verifies if a trunk port is forwarding traffic correctly on an Aruba CX switch?
- A . show trunk interface
- B . show vlan trunk
- C . show interface trunk
- D . display trunk forwarding
C
Explanation:
The show interface trunk command displays VLANs allowed on the trunk, ensuring the correct VLANs are forwarded between switches and preventing communication failures.
Which CLI command displays VRF-specific routing information?
- A . show ip route vrf
- B . show vrf routes
- C . show routing vrf
- D . display vrf routes
A
Explanation:
The show ip route vrf command displays the routing table of a specific VRF instance, allowing administrators to verify isolated routes and troubleshoot segmentation issues.
Which two QoS mechanisms improve real-time application performance? (Select two)
- A . Low Latency Queuing (LLQ)
- B . Traffic Shaping
- C . DNS Caching
- D . VLAN Load Balancing
A, B
Explanation:
LLQ prioritizes delay-sensitive traffic such as VoIP, while traffic shaping smooths network bursts, reducing packet drops and improving transmission consistency.
What is the primary benefit of enabling BGP Graceful Restart in an MPLS L3VPN hand-off from an Aruba CX 6400 core?
- A . Faster detection of hardware faults via sub-second timers.
- B . Preservation of data-plane forwarding during a control-plane reset.
- C . Automatic redistribution of IGP routes into BGP.
- D . Ability to advertise multiple VRF route-distinguishers.
B
Explanation:
Graceful Restart maintains the forwarding table while the BGP process restarts, minimizing traffic loss―critical when the core hands off MPLS VPN routes to a service-provider PE.
Which Aruba CX feature allows intelligent event-driven automation for network troubleshooting?
- A . Checkpoint and Rollback
- B . Virtual Switching Framework (VSF)
- C . Network Analytics Engine (NAE)
- D . Aruba NetEdit
C
Explanation:
NAE provides real-time event correlation and automation, enabling proactive monitoring, anomaly detection, and self-healing network operations.
Which CLI command removes a misconfigured default gateway from an Aruba CX switch?
- A . no ip default-gateway
- B . delete default route
- C . unset gateway
- D . clear ip route default
A
Explanation:
The no ip default-gateway command removes an incorrect gateway address, ensuring the correct gateway can be set for proper network routing.
Which CLI command configures an interface for strict priority queuing (SPQ)?
- A . priority-queue strict
- B . qos queue strict-priority
- C . traffic-priority high
- D . apply priority-queue strict
B
Explanation:
The qos queue strict-priority command ensures high-priority traffic is always processed before lower-priority traffic, minimizing latency for critical applications.
Which CLI command displays all applied access control lists (ACLs) on an Aruba CX switch?
- A . show access-lists
- B . show ip access-group
- C . display acl rules
- D . show applied acl
A
Explanation:
The show access-lists command displays all configured ACLs, including their sequence numbers, permit/deny actions, and the interfaces where they are applied.
Which Aruba CX switch integrates firewalling and microsegmentation directly into the hardware?
- A . Aruba CX 10000
- B . Aruba CX 8400
- C . Aruba CX 6300
- D . Aruba CX 6200
A
Explanation:
The Aruba CX 10000 is built with Pensando SmartNIC technology, enabling distributed security, firewalling, and microsegmentation. It allows per-port security enforcement without traditional external firewalls.
Which CLI command enables 802.1X authentication on an Aruba CX switch port?
- A . aaa port-access authenticator 1/1/1
- B . dot1x enable 1/1/1
- C . enable 802.1x authentication
- D . switchport dot1x enable
A
Explanation:
The aaa port-access authenticator command enables 802.1X on a port, ensuring only authenticated devices can access the network using RADIUS-based authentication.