Free HP HPE7-A08 Practice Exam with Questions & Answers

When configuring OSPF on a point-to-point network type (typically a direct link between two routers), OSPF treats the link as a broadcast-less point-to-point segment.

This reduces unnecessary OSPF overhead by eliminating the need for:

DR/BDR elections (which generate LSA Type 2 advertisements for broadcast multi-access networks).

Thus, changing network type to point-to-point reduces the number of LSA Type-2 advertisements, which are used to describe the network segment in multi-access environments.

No impact on number of routes (LSA Type-3 is about inter-area routes).

The default is usually broadcast or point-to-multipoint depending on interface.

In the exhibit, the CX8325 switch ports 1/1/47 and 1/1/48 are connected in a VSX setup. According to Aruba VSX best practices, ports on the CX8325 switch that serve as ISL or VSX interconnects should use SFP28 optics for 25Gbps links. If SFP56 optics are used, it would be incorrect because CX8325 ports are designed to support SFP28 modules for these speeds.

CX6300 ports use SFP56 or QSFP28 depending on model and link speed.

CX8300 series ports designed for QSFP28 for higher speeds.

Hence, the best practice is to use SFP28 on CX8325 for the interconnect links.

When troubleshooting downloadable user roles (DUR) between Aruba CX switches and ClearPass, it is crucial to verify the Trust Anchor profile on the switch. The Trust Anchor profile contains the certificates and keys that allow secure communication and authentication with ClearPass, ensuring the switch can validate the RADIUS server and downloaded user role information.

SNMP community string (Option A) is unrelated to DUR.

User-role configuration (Option B) is important but verifying trust anchor ensures secure role downloads.

HTTPS client certificate (Option C) is not typically part of DUR authentication.

Therefore, the Trust Anchor profile must be verified.

Comprehensive Detailed Explanation:

For live upgrading a VSX cluster, the correct procedure is to use the vsx update-software option, which allows in-service software upgrade (ISSU) with minimal disruption by upgrading switches one at a time while maintaining synchronization.

issu update-software is not a recognized command in Aruba CX.

Reloading the primary first risks service disruption.

Compatibility mode is not required prior to reboot.

In a hotel environment where a single subnet is used for wired guests, but guest devices in a conference room need to communicate with each other (and with the default gateway), while remaining isolated from other guests elsewhere, Community VLANs are appropriate.

Community VLANs allow hosts within the same VLAN community to communicate with each other and the default gateway but are isolated from hosts in other communities.

Isolated VLANs block communication between ports and only allow communication to the gateway.

Therefore, assigning conference room guests to a community VLAN and the gateway to a primary VLAN allows the desired communication model.

The troubleshooting methodology exemplified by comparing outputs or configurations to find discrepancies is called Spot the difference. It involves checking variations between working and non-working states or devices.

Follow the path: tracing packet flow step-by-step.

Top-down/Bottom-up: analyzing layers systematically.

Replace configuration: swapping configurations to isolate issues.

Here, comparing command outputs aligns with spot-the-difference.

LACP (Link Aggregation Control Protocol) modes can be active or passive. When two switches are both configured in passive mode, no LACP packets are initiated, causing the link aggregation to fail or go into a block state.

Changing one side from passive to active causes that switch to initiate LACP negotiation, resolving the block state.

Changing to static mode disables LACP negotiation, which is not recommended unless both sides are static.

Changing timeout does not solve LACP block issues caused by mode mismatches.

Therefore, changing one switch’s LACP mode from passive to active is necessary to resolve the block.

To receive a monthly report tracking available licenses and their expiration dates in Aruba Central, the Infra Inventory report should be scheduled. It provides detailed information about device inventories, including licenses and expiration.

Switch Capacity Planning focuses on resource utilization.

Resource Utilization monitors system performance.

Network report focuses on topology and health.

To avoid split-brain scenarios in VSF stacks, the VSL split-detect mgrep command is used to enable multicast group detection over the Virtual Switching Link (VSL). This helps detect when the stack links are down or partitioned, triggering appropriate failover or shutdown mechanisms.

Options like vsf start-auto-stacking, vsf secondary-member 2, or vsf conductor-member 2 are related to stack initialization and member roles but do not address split-brain detection directly.

Hence, enabling split-detect with mgrep is the best practice for VSF stack stability.

DHCP snooping requires to be enabled globally before it will function correctly. If it is not enabled globally, even if enabled on VLAN interfaces, DHCP snooping will not work.

Enabling authorized DHCP servers (A) or trusted interfaces (B) is necessary but only after global enabling.

Enabling DHCP snooping on VLAN (C) is not sufficient without global enablement.

Therefore, enabling DHCP snooping globally is the first step to activate the feature.