Free HPE6-A72 sample questions

Correct answer: has all the functionality of a Layer 2 switch and most of the functionality of a Layer 3 router

Correct answers: VSX allows upgrading members with near zero downtime or loss of packets.; VSX run separate control planes to reduce latency and improve performance.

Correct answer: Virtual Switching Extension (VSX)

VSX (Virtual Switching Extension) is designed for the Aruba CX platform to provide high availability with independent control planes. This allows for live software upgrades (VSX Live Upgrade) where traffic continues to flow through one peer while the other upgrades, unlike VSF which shares a single control plane.

Correct answer: interface vlan 20 ip address 10.20.10.254/24 no shutdown

In ArubaOS-CX, Layer 3 VLAN interfaces are configured using 'interface vlan X'. The last usable address in a /24 subnet (10.20.10.0-10.20.10.255) is .254. The 'no shutdown' command is often required to ensure the administrative state is up, although it may be up by default depending on the specific version and context, explicitly enabling it is best practice.

Correct answer: OVSDB (Open vSwitch Database)

ArubaOS-CX is built on a microservices architecture centered around the OVSDB (Open vSwitch Database). This state database holds all configuration and status information. NetEdit and other tools interact with the system via the REST API, which reads from and writes to this central OVSDB.

Correct answer: Auto-stacking was not enabled, and the new member was not manually provisioned.

In VSF (Virtual Switching Framework), simply connecting cables is often not enough if auto-stacking isn't configured or if the replacement unit isn't clean. The new member usually needs to be provisioned (assigned a member ID) on the Commander, or auto-stacking features must be correctly set up for it to join automatically.

Correct answers: To reduce the CPU load on switches by grouping multiple VLANs into a single spanning tree instance.; To limit the number of BPDUs transmitted on trunk links, conserving bandwidth.

MSTP maps multiple VLANs to a single instance, significantly reducing the number of BPDU calculations and CPU overhead compared to RPVST+, which runs a separate instance for every VLAN.

Because MSTP uses fewer instances, it sends fewer BPDUs across trunk links compared to RPVST+, which sends a BPDU for every VLAN on the trunk.

Correct answer: False

VSX synchronization is selective. It does not blindly sync everything. Specific features (like VLANs, ACLs, policies) must be explicitly allowed for sync, and unique interface configurations (like IP addresses on routed ports or descriptions) are typically maintained separately or require specific VSX-sync commands. It is not an 'all-or-nothing' full config push.