HPE7-A06 Prüfungs-Guide, HPE7-A06 Testfagen
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HPE Campus Access Switching Expert Written Exam HPE7-A06 Prüfungsfragen mit Lösungen (Q69-Q74):
69. Frage
You arc about lo deploy a gateway that is on factory default. ZTP cannot be used for different reasons, but you are searching forvalid alternatives. What are two valid alternatives for ZTP? (Select two.)
Antwort: A,E
Begründung:
The question asks for valid alternatives to Zero Touch Provisioning (ZTP) for initially configuring a factory default Aruba gateway when ZTP cannot be used.
* Aruba Gateway Initial Provisioning Methods:
* ZTP:Automated provisioning using Activate/Central.
* One-Touch Provisioning (OTP) / Manual Setup:Involves direct connection for initial configuration.
* Web UI:Connecting a laptop to a specific management or designated setup port (often GE0
/0/1 on many gateway models) allows access to a web-based setup wizard.
* Console Port:Connecting via the serial console port allows CLI access, which includes guided setup scripts or manual configuration.
* Analysis of Options:
* A: Port 0/0/0 is typically the OOBM port, not the standard OTP web UI port.
* B: Port 0/0/1 is commonly used for OTP via Web browser on many Aruba gateway models.
* C: Using the console port with terminal software for initial setup (potentially using a "Full-Setup" wizard or script) is a standard manual method.
* D: "Static-Activate" refers to manual registration with the Activate service, not a console setup mode.
* E: Requires setting a static IP, adding complexity beyond the basic OTP connection method described in B.
* Conclusion:Using the designated OTP Ethernet port (commonly GE0/0/1) with a web browser (Option B) and using the console port with terminal software (Option C) are the standard, valid alternatives to ZTP for initial gateway setup.
References:Aruba Gateway Installation and Quick Start Guides, AOS-10 Fundamentals Guide (Provisioning sections). This relates to "Connectivity" (9%) and "Troubleshooting" (10%) objectives.
70. Frage
Which command will permit read-only access to a user with physical access to an AOS-CS switch?
Antwort: B
Begründung:
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.
71. Frage
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?
Antwort: C
Begründung:
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.
72. Frage
Match the BGP connection slates to the conditions thatcould have caused that state.
Antwort:
Begründung:
Explanation:
The router is able to process update messages. -->established
The router is waiting for the neighbor's open message. -->open sent
Routers have agreed on matching feature sets. -->open confirm
The session establishment has timed out. -->idle
This question requires matching BGP connection states from the BGP Finite State Machine (FSM) to descriptions of conditions that occur within or lead to those states.
* Idle:This is the initial state where BGP awaits a start event or retries after a failure. It's also the state entered upon error detection or session closure, including timeouts during connection attempts.
* Matches:"The session establishment has timed out." - A timeout during the connection process forces the BGP process back to the Idle state to potentially retry later.
* OpenSent:After a TCP connection is established, the local router sends a BGP OPEN message with its parameters (AS number, capabilities, etc.) and transitions to the OpenSent state while waiting to receive an OPEN message from its BGP neighbor.
* Matches:"The router is waiting for the neighbor's open message."
* OpenConfirm:Once the router receives an OPEN message from its neighbor and validates the parameters (e.g., matching AS, compatible capabilities), it sends a KEEPALIVE message and moves to the OpenConfirm state. It waits for a KEEPALIVE from the neighbor to confirm the session. Basic parameter checks and capability negotiations are successfully completed in this phase.
* Matches:"Routers have agreed on matching feature sets." - This agreement happens upon successful validation of the OPEN messages exchanged.
* Established:This is the final, stable state where BGP peering is successful. Both routers have accepted each other's parameters via the OPEN messages and confirmed the session with KEEPALIVEs. In this state, the routers can exchange UPDATE messages containing routing information.
* Matches:"The router is able to process update messages."
References:RFC 4271 (BGP4 specification - Section 8, Finite State Machine), BGP configuration and troubleshooting guides for AOS-CX. This relates to the "Routing" (16%) and "Troubleshooting" (10%) objectives.
73. Frage
Match the AOS-CX switch BGP keepalive and holddown timersto the default.
Antwort:
Begründung:
Explanation:
The question requires matching the default BGP keepalive and hold-down timers on AOS-CX switches to their respective values.
* Analysis of Options:
* Keepalive Timer:The keepalive timer determines how often BGP keepalive messages are sent to maintain a session. The default value on AOS-CX switches is 60 seconds.
* Hold-down Timer:The hold-down timer specifies the maximum time a BGP session can remain active without receiving a keepalive or updatemessage before it is considered down. The default value on AOS-CX switches is 180 seconds.
* Why This Mapping is Correct:Per BGP standards (RFC 4271) and HPE Aruba Networking AOS-CX documentation, the default BGP keepalive timer is 60 seconds, and the hold-down timer is 180 seconds (three times the keepalive interval). These timers ensure BGP sessions remain stable while allowing timely detection of peer failures. The AOS-CX implementation adheres to these defaults unless explicitly configured otherwise.
* Relevance to Certification Objectives:
* Routing (16%):Involves designing and troubleshooting BGP routing topologies, including timer configurations.
* Troubleshooting (10%):Includes diagnosing BGP session issues related to timers.
References:
HPE Aruba Networking AOS-CX Configuration Guide: BGP Configuration, detailing default timer values.
HPE7-A06Study Guide: Covers BGP session management and timers.
RFC 4271: A Border Gateway Protocol 4 (BGP-4), specifying default keepalive and hold-down timers.
74. Frage
......
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