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HP HPE7-A08 Practice Test 71

Question 700

Troubleshooting points to a new ACL change where a general deny matches traffic before a permitted-specific destination. What is the likely fault?

  1. MAC authentication fallback churn
  2. RADIUS server response delay
  3. 802.1X reauthentication instability
  4. Incorrect ACL order or scope

Explanation

Correct Answer

D:

ACL precedence is causing unintended denial. An early broad rule can shadow a more specific permit and make application flows appear slow or broken.

Incorrect Answers

A:

Frequent failure or retry between authentication methods can repeatedly replace an endpoint's access role. But this does not address the case requirement to identify shadowed authorized traffic.

B:

Slow or unreachable AAA service can hold endpoint authorization pending and delay connectivity. But this does not address the case requirement to identify shadowed authorized traffic.

C:

Repeated authorization state changes can interrupt traffic while physical carrier remains healthy. But this does not address the case requirement to identify shadowed authorized traffic.

Question 701

After a RADIUS maintenance window, wired authentication takes minutes though links remain up. Which system should be timed?

  1. Security role with unintended rate or VLAN treatment
  2. RADIUS server response delay
  3. MAC authentication fallback churn
  4. Control-plane policing drop

Explanation

Correct Answer

B:

Measure AAA response/retries before blaming switching fabric. Slow or unreachable AAA service can hold endpoint authorization pending and delay connectivity.

Incorrect Answers

A:

A returned role can place devices in a slow or restricted path unrelated to the intended application. But this does not address the case requirement to identify external authentication latency.

C:

Frequent failure or retry between authentication methods can repeatedly replace an endpoint's access role. But this does not address the case requirement to identify external authentication latency.

D:

A restrictive control-plane policy may discard required protocol packets and indirectly disrupt data services. But this does not address the case requirement to identify external authentication latency.

Question 702

A user is assigned a guest bandwidth policy instead of employee role, with no interface errors. Which authorization component should be examined?

  1. MAC authentication fallback churn
  2. Security role with unintended rate or VLAN treatment
  3. Incorrect ACL order or scope
  4. 802.1X reauthentication instability

Explanation

Correct Answer

B:

RADIUS role mapping determined an unintended rate and access profile. A returned role can place devices in a slow or restricted path unrelated to the intended application.

Incorrect Answers

A:

Frequent failure or retry between authentication methods can repeatedly replace an endpoint's access role. But this does not address the case requirement to identify wrong dynamic access-role selection.

C:

An early broad rule can shadow a more specific permit and make application flows appear slow or broken. But this does not address the case requirement to identify wrong dynamic access-role selection.

D:

Repeated authorization state changes can interrupt traffic while physical carrier remains healthy. But this does not address the case requirement to identify wrong dynamic access-role selection.

Question 703

Before changing an AOS-CX distribution LAG, an operator needs a device-local recovery point. Which action fits?

  1. Compare candidate against saved configuration
  2. Save approved running state persistently
  3. Create a named prechange checkpoint
  4. Retain a timestamped change record

Explanation

Correct Answer

C:

Capture a named checkpoint before making the risky edit. A prechange snapshot creates a known-good device configuration state for later comparison or rollback.

Incorrect Answers

A:

A configuration diff shows precisely what was added or removed before an approved deployment. But this does not address the case requirement to retain a reversible known-good configuration.

B:

Persisting an accepted configuration protects settings from a subsequent device restart. But this does not address the case requirement to retain a reversible known-good configuration.

D:

An auditable record ties exact configuration versions to the operator, reason and maintenance window. But this does not address the case requirement to retain a reversible known-good configuration.

Question 704

A reviewer needs to know whether a change removes VLAN 41 from any uplink. What comparison should be performed?

  1. Perform supported checkpoint rollback
  2. Verify rollback restored service
  3. Save approved running state persistently
  4. Compare candidate against saved configuration

Explanation

Correct Answer

D:

Compare the proposed configuration with the currently accepted version. A configuration diff shows precisely what was added or removed before an approved deployment.

Incorrect Answers

A:

AOS-CX checkpoint rollback can restore a selected stored configuration when recovery is warranted. But this does not address the case requirement to identify exact configuration differences.

B:

A successful rollback command alone does not prove VLAN, route and client operations recovered. But this does not address the case requirement to identify exact configuration differences.

C:

Persisting an accepted configuration protects settings from a subsequent device restart. But this does not address the case requirement to identify exact configuration differences.

Question 705

A newly applied ACL cuts off business services and an accepted checkpoint is available. Which recovery mechanism should be evaluated?

  1. Perform supported checkpoint rollback
  2. Retain a timestamped change record
  3. Verify rollback restored service
  4. Compare candidate against saved configuration

Explanation

Correct Answer

A:

Use the supported rollback workflow to restore the approved checkpoint. AOS-CX checkpoint rollback can restore a selected stored configuration when recovery is warranted.

Incorrect Answers

B:

An auditable record ties exact configuration versions to the operator, reason and maintenance window. But this does not address the case requirement to revert a defective change safely.

C:

A successful rollback command alone does not prove VLAN, route and client operations recovered. But this does not address the case requirement to revert a defective change safely.

D:

A configuration diff shows precisely what was added or removed before an approved deployment. But this does not address the case requirement to revert a defective change safely.

Question 706

A maintenance edit works in running state, but would be lost after reboot if not persisted. What additional action is required?

  1. Save approved running state persistently
  2. Create a named prechange checkpoint
  3. Perform supported checkpoint rollback
  4. Retain a timestamped change record

Explanation

Correct Answer

A:

Save the approved state according to platform persistence requirements. Persisting an accepted configuration protects settings from a subsequent device restart.

Incorrect Answers

B:

A prechange snapshot creates a known-good device configuration state for later comparison or rollback. But this does not address the case requirement to retain accepted changes after reboot.

C:

AOS-CX checkpoint rollback can restore a selected stored configuration when recovery is warranted. But this does not address the case requirement to retain accepted changes after reboot.

D:

An auditable record ties exact configuration versions to the operator, reason and maintenance window. But this does not address the case requirement to retain accepted changes after reboot.

Question 707

After reverting a faulty switch policy, operators see the rollback complete but cannot yet prove clients can reach the gateway. What remains?

  1. Create a named prechange checkpoint
  2. Save approved running state persistently
  3. Retain a timestamped change record
  4. Verify rollback restored service

Explanation

Correct Answer

D:

Test affected VLANs, routes and user flows after rollback. A successful rollback command alone does not prove VLAN, route and client operations recovered.

Incorrect Answers

A:

A prechange snapshot creates a known-good device configuration state for later comparison or rollback. But this does not address the case requirement to confirm operational restoration.

B:

Persisting an accepted configuration protects settings from a subsequent device restart. But this does not address the case requirement to confirm operational restoration.

C:

An auditable record ties exact configuration versions to the operator, reason and maintenance window. But this does not address the case requirement to confirm operational restoration.

Question 708

An audit finds nobody can determine who approved the latest configuration. Which control was missing?

  1. Save approved running state persistently
  2. Verify rollback restored service
  3. Retain a timestamped change record
  4. Perform supported checkpoint rollback

Explanation

Correct Answer

C:

Record change identity, time, reason and approver against the version. An auditable record ties exact configuration versions to the operator, reason and maintenance window.

Incorrect Answers

A:

Persisting an accepted configuration protects settings from a subsequent device restart. But this does not address the case requirement to maintain traceable configuration provenance.

B:

A successful rollback command alone does not prove VLAN, route and client operations recovered. But this does not address the case requirement to maintain traceable configuration provenance.

D:

AOS-CX checkpoint rollback can restore a selected stored configuration when recovery is warranted. But this does not address the case requirement to maintain traceable configuration provenance.

Question 709

A large campus QoS update is about to begin with no offline backup. Which immediate safeguard offers a local rollback point?

  1. Perform supported checkpoint rollback
  2. Retain a timestamped change record
  3. Compare candidate against saved configuration
  4. Create a named prechange checkpoint

Explanation

Correct Answer

D:

Create an approved premaintenance configuration checkpoint. A prechange snapshot creates a known-good device configuration state for later comparison or rollback.

Incorrect Answers

A:

AOS-CX checkpoint rollback can restore a selected stored configuration when recovery is warranted. But this does not address the case requirement to provide a recovery baseline.

B:

An auditable record ties exact configuration versions to the operator, reason and maintenance window. But this does not address the case requirement to provide a recovery baseline.

C:

A configuration diff shows precisely what was added or removed before an approved deployment. But this does not address the case requirement to provide a recovery baseline.

Question 710

A trunk modification locks out a branch, and the operator has a previously tested checkpoint. What should be used instead of guessing commands?

  1. Create a named prechange checkpoint
  2. Verify rollback restored service
  3. Compare candidate against saved configuration
  4. Perform supported checkpoint rollback

Explanation

Correct Answer

D:

Restore a verified checkpoint and validate state afterward. AOS-CX checkpoint rollback can restore a selected stored configuration when recovery is warranted.

Incorrect Answers

A:

A prechange snapshot creates a known-good device configuration state for later comparison or rollback. But this does not address the case requirement to recover a known-working configuration.

B:

A successful rollback command alone does not prove VLAN, route and client operations recovered. But this does not address the case requirement to recover a known-working configuration.

C:

A configuration diff shows precisely what was added or removed before an approved deployment. But this does not address the case requirement to recover a known-working configuration.

HPE Network Switching Professional (HPE7-A08) Practice Tests

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