Exam HPE7-A06 Labs & HPE7-A06 Reliable Dumps Questions

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HPE Campus Access Switching Expert Written Exam Sample Questions (Q17-Q22):

NEW QUESTION # 17
Ever since a recent firewall change at your WAN/lnternet edge, the 8GP state in your VSX pair has not returned to Established. What should you check to restore BGP functionality at the site?

A. Confirm that appropriate TCP ports are still allowed.
B. Restart NAT service for the BGP interface.
C. Restart the routing service so thatBGP auto-discovers its neighbors.
D. Confirm that BGP Peer AS has not changed.

Answer: A

Explanation:
The BGP state on a VSX pair is stuck (not 'Established') after a recent firewall change at the WAN/Internet edge, where the BGP peering likely occurs.
* BGP and Firewalls:BGP establishes sessions usingTCP port 179. Firewalls located between BGP peers must explicitly permit TCP port 179 traffic bidirectionally for the peering to establish and maintain. Firewall changes are a frequent cause of broken BGP sessions.
* Troubleshooting Steps After Firewall Change:The most logical first step is to verify that the firewall change did not inadvertently block TCP port 179 between the configured BGP neighbor IP addresses.
* Analysis of Options:
* A: Restarting routing service is disruptive and not the first step.
* B: Confirming that appropriate TCP ports (specifically 179) are still allowed through the firewall directly addresses the most probable cause related to the firewall change event.
* C: Restarting NAT service is likely irrelevant unless NAT is incorrectly configured for BGP peers.
* D: Confirming the peer AS is a basic configuration check but less likely related to thefirewall changeevent than port blocking.
* Conclusion:Given the problem occurred immediately following a firewall change, verifying that the firewall still permits TCP port 179 between the BGP peers is the most direct and likely troubleshooting step.
References:BGP protocol specifications (RFC 4271), Firewall management principles, Network troubleshooting methodology. This relates to "Routing" (16%), "Security" (10%), and "Troubleshooting" (10%) objectives.

NEW QUESTION # 18
Exhibit.

VSX cluster is already configured. Your task is to validate a correct configuration for the Edge-1 switch that is connected to a CCTV provider that will install its switching infrastructure. The CCTV switches do not support STP.
What needs to be configured on the Edge-1 switch ports connecting to CCTV-SW1 and CCTV-SW2 to prevent loop problems with the existing setup with automatic recovery features?

A. configure spanning-tree with udld for CCTV switch ports
B. configure spanning-tree and TCN-guard timeout for CCTV switch ports
C. configure spanning-tree with bpdu-guard timeout values for CCTV switch ports
D. configure lag with lacp fallback for CCTV switch ports

Answer: C

Explanation:
The requirement is to prevent loops on Edge-1 switch ports connected to third-party CCTV switches that do notsupport STP. The solution must also include an automatic recovery feature if a port gets disabled.
* Loop Prevention without STP:When connecting to non-STP devices, standard STP loop prevention (like BPDU Guard) might not work if the connected device doesn't send BPDUs. AOS-CX offers a feature called loop-protect which sends probes to detect loops in non-STP environments.
* Automatic Recovery:Features that disable ports (like BPDU Guard or Loop Protect) often have a timeout or auto-recovery option (port-disable-timer for Loop Protect) allowing the port to automatically re-enable after a configured period.
* Analysis of Options:
* A: LACP fallback applies to LAGs, not general loop prevention.
* B: TCN-guard is an STP feature, irrelevant here.
* C: Suggests spanning-tree with bpdu-guard timeout. BPDU Guard detects loops by listening for BPDUs, which these CCTV switches don't send. However, the timeout featuredoesprovide the required automatic recovery mechanism if the portweredisabled by BPDU Guard.
* D: UDLD detects unidirectional links, not typically bridging loops caused by topology.
* Re-evaluation:The ideal AOS-CX feature is loop-protect with port-disable-timer. Since this isn't explicitly an option, we must evaluate the given choices. Option C is theonlyone that mentions a mechanism (bpdu-guard timeout) providing automatic recovery from a disabled state. While BPDU Guard isn't the right detection mechanism here, it's the closest fit regarding the auto- recoveryrequirement. It's possible the question implicitly assumes some stray BPDUs might trigger it or that it's the intended "best fit" answer despite the detection mechanism mismatch.
* Conclusion:Given the options, Option C is the most plausible because it includes the timeout feature associated with bpdu-guard, fulfilling the automatic recovery requirement, even though BPDU guard itself is not the ideal detection method for loops involving non-STP devices.
References:AOS-CX Spanning Tree Protocol Guide (BPDU Guard, Timeout), AOS-CX Interface Configuration Guide (loop-protect feature). This relates to "Switching" (19%) and "Network Resiliency and virtualization" (8%) objectives.

NEW QUESTION # 19
Match the network technology to the customer requirement.

Answer:

Explanation:

* Establish redundant links between the aggregation and core layers:When using Layer 3 routing between network layers (like Aggregation and Core),ECMP (Equal Cost Multi-Path)allows the routing protocol (e.g., OSPF, BGP) to utilize multiple links simultaneously if they have the same routing cost. This provides both redundancy (if one link fails, traffic uses the others) and load sharing across the links.
References:AOS-CX IP Routing Guide (OSPF, BGP, ECMP). Relates to "Routing" (16%), "Network Resiliency and virtualization" (8%).
Extend layer 2 across multiple sites:VXLAN (Virtual Extensible LAN)is the overlay technology specifically designed for this purpose. It encapsulates Layer 2 Ethernet frames within UDP packets, allowing them to be tunneled across an underlying Layer 3 network infrastructure, effectively stretching Layer 2 domains (VLANs) between physically separate locations.
References:AOS-CX VXLAN Guide.Relates to "Switching" (19%), "Connectivity" (9%).
Identify individual layer 2 segments in an overlay:Inside the VXLAN header, theVNI (VXLAN Network Identifier)serves as the segment identifier. Each unique Layer 2 segment (like a specific VLAN being extended) is mapped to a unique 24-bit VNI, allowing the overlay network to differentiate between traffic belonging to different L2 domains, even when tunneled between the same VTEPs (VXLAN Tunnel Endpoints).
References:AOS-CX VXLAN Guide, RFC 7348 (VXLAN).Relates to "Switching" (19%), "Connectivity" (9%).
Minimize configuration steps to establish tunnels between sites:While VXLAN provides the data plane encapsulation,EVPN (Ethernet VPN)acts as the modern control plane for VXLAN overlays. Using MP-BGP extensions, EVPN dynamically discovers VTEPs and advertises MAC address and IP reachability information. This significantly reduces configuration complexity compared to older static VXLAN or flood- and-learn methods, as VTEP peer relationships and endpoint learning are automated by the control plane, thus minimizing manual steps to establish connectivity.
References:AOS-CX EVPN Guide.Relates to "Routing" (16%), "Switching" (19%), "Connectivity" (9%).

NEW QUESTION # 20
Which command will permit read-only access to a user with physical access to an AOS-CS switch?

Answer: B

Explanation:
The question involves granting read-only access to a user with physical access to an AOS-CX switch. The task is to identify the correct command set.
* Analysis of Options (Assumed Context):Read-only access is typically configured using AAA with a privilege level or role. Option C is assumed to include commands like:
text
Copy
aaa authentication login privilege-mode
user operator password plaintext <password>
This assigns the "operator" role, which provides read-only access.
* Option A:Incorrect. Likely uses an incorrect role or privilege level (e.g., admin).
* Option B:Incorrect. May configure a role with excessive permissions or invalid syntax.
* Option C:Correct. Configures a user with the "operator" role for read-only access.
* Option D:Incorrect. Likely includes commands for a different access level or invalid configuration.
* Why Option C is Correct:In AOS-CX, the "operator" role provides read-only access, allowing users to view configurations and status (e.g., show commands) without modifying settings. The command user operator password plaintext <password> creates a local user with this role, and aaa authentication login privilege-mode ensures privilege levels are enforced upon login. This configuration is suitable for a user with physical access (e.g., via console or SSH), ensuring they cannot alter the switch, as per HPE Aruba Networking's AAA security practices.
* Relevance to Certification Objectives:
* Authentication/Authorization (9%):Configuring AAA for user access control.
* Security (10%):Implementing secure management access in customer networks.
* Troubleshooting (10%):Ensuring proper user permissions for network management.
References:
HPE Aruba Networking AOS-CX Configuration Guide: AAA Configuration, detailing user roles.
HPE7-A06Study Guide: Covers secure management access on AOS-CX switches.
HPE Aruba Networking Technical Documentation: AAA and User Role Best Practices.

NEW QUESTION # 21
Place the recommended troubleshooting steps in order.

Answer:

Explanation:

Explanation:
The correct order is:
* identify
* analyze
* hypothesize
* validate
* implement
* verify
This question requires arranging standard troubleshooting steps into a logical sequence. A systematic approach is crucial for effective network troubleshooting.
* identify:The first step is always to clearly identify and define the problem. What are the symptoms?
Who is affected? What is the scope? When did it start? Understanding the problem precisely is essential before proceeding.
* analyze:Once the problem is identified, gather relevant data and analyze the situation. This involves checking logs, looking at configurations, examining network topology diagrams, checking status commands, and potentially capturing packets. This analysis helps build context around the identified issue.
* hypothesize:Based on the identification and analysis, form a hypothesis (or multiple hypotheses) about the probable cause of the problem. This involves using technical knowledge and experience to theorize what might be wrong.
* validate:Test the hypothesis to determine if it's correct. This step involves performing specific tests or checks designed to confirm or refute the theory. For example, if the hypothesis is a bad cable, test the cable. If it's a routing issue, check the routing table and perform trace routes. This step validates the cause before implementing a fix.
* implement:Once the cause has been validated, implement the solution. This could involve replacing hardware, correcting configuration, clearing states, etc.
* verify:After implementing the solution, verify that the original problem is resolved. It's also critical to check that the fix hasn't introduced any new issues. Monitor the system to ensure stability.
References:Standard Network Troubleshooting Methodologies (e.g., CompTIA Network+, Cisco troubleshooting models), ITIL Problem Management processes. This directly relates to the "Troubleshooting" (10%) objective, which emphasizes performing advanced troubleshooting and remediation.

NEW QUESTION # 22
......

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EXAM HPE7-A06 LABS & HPE7-A06 RELIABLE DUMPS QUESTIONS

Exam HPE7-A06 Labs & HPE7-A06 Reliable Dumps Questions