HP Updated HPE7-A08 Exam Questions and Answers by paddy

If both switches are configured with default spanning-tree priorities and both appear as primary root bridges, to have a single spanning tree domain, matching MST configuration (Multiple Spanning Tree) must be created on Core-2 to align with Core-1.

Setting priority to 1 on one switch can help but matching MST configurations is the recommended approach for multiple VLANs.

Creating MST instances on only one switch will not ensure consistency.

Matching MST configurations ensures consistent root bridge election and stable spanning tree.

To prevent rogue DHCP servers in a VLAN, DHCP snooping authorized-server commands are used to specify trusted DHCP servers allowed to respond.

Option A (dhcpv4-snooping trust 10.100.100.10) configures a trusted port, but it is not VLAN specific and not precise enough for this purpose.

Enabling DHCP snooping globally and on VLAN or interface (Options C and D) are prerequisites but do not prevent rogue servers unless authorized servers are defined.

Option B correctly enables an authorized DHCP server IP on VLAN 30, blocking unauthorized DHCP responses.

When managing a network through HPE Aruba Networking Central , administrators have access to specialized reporting tools designed for lifecycle management and expansion planning.

Purpose of the Switch Capacity Planning Report: This specific report is engineered to give a clear overview of physical and electrical headroom within the switching infrastructure. When preparing to add new Access Points (APs), two variables are critical:

Port Density: The report identifies the number of available (unused) ports across various speeds (1GbE, 2.5GbE, 5GbE, etc.).

PoE Budgeting: High-performance APs (such as Wi-Fi 6E or Wi-Fi 7 models) require significant Power over Ethernet (PoE) wattage (PoE+ or UPoE). The report calculates the Total PoE Budget vs. the Currently Allocated PoE , allowing you to see if the switch power supplies can handle the additional load.

Evaluating Other Options:

Option A (Infra Inventory): This report focuses on asset management. it provides details like serial numbers, MAC addresses, hardware models, and firmware versions. It does not provide real-time or historical port usage or PoE consumption data.

Option C (Network): This is a broader summary report that typically focuses on connectivity, client counts, and overall network health rather than specific hardware resource limits.

Option D (Resource Utilization): While this report is useful, it generally focuses on System Resources such as CPU usage, Memory (RAM) consumption, and temperature sensors rather than physical port availability or PoE power budgets.

Best Practice: In an Aruba Central environment, running the Switch Capacity Planning report before a hardware refresh or expansion is a mandatory step to avoid " PoE starvation " or physical port shortages during the installation phase.

The output indicates that the ISL (Inter-Switch Link) has failed, which in a VSX environment leads to a split-brain condition because the two VSX switches can no longer synchronize their state. Split-brain occurs when the VSX members lose communication over the ISL but continue forwarding traffic independently, causing network inconsistencies.

The device does not have the highest VSX priority (Option A).

VSX health cannot be confirmed as healthy due to ISL failure (Option C).

ISL configuration in the management VRF (Option D) is unrelated to split-brain detection.

Thus, ISL failure resulting in split-brain is the correct assessment.