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HP HPE7-A08 Practice Test 21

Question 200

An API client cannot reach an AOS-CX REST endpoint even though ordinary ping succeeds. What service setup should be checked?

  1. SSH administrative access
  2. HTTPS REST service exposure
  3. DNS resolver configuration
  4. AAA administrative authorization

Explanation

Correct Answer

B:

HTTPS/REST server configuration and VRF exposure control the API. REST management access depends on an enabled service and appropriate VRF/reachability/security controls.

Incorrect Answers

A:

Secure shell supports encrypted remote CLI sessions subject to management ACLs and identity. But this does not address the case requirement to allow authorized structured management over the intended VRF.

C:

Management agents that use hostnames require correct resolver configuration. But this does not address the case requirement to allow authorized structured management over the intended VRF.

D:

Operator privileges and authentication servers control who can manage the switch. But this does not address the case requirement to allow authorized structured management over the intended VRF.

Question 201

Operators require encrypted terminal access to a new core switch rather than Telnet. What protocol is suitable?

  1. SSH administrative access
  2. Time synchronization via NTP
  3. HTTPS REST service exposure
  4. AAA administrative authorization

Explanation

Correct Answer

A:

SSH provides secure remote command sessions. Secure shell supports encrypted remote CLI sessions subject to management ACLs and identity.

Incorrect Answers

B:

Consistent clocks make distributed logs, certificates and event correlation reliable. But this does not address the case requirement to protect administrative terminal traffic.

C:

REST management access depends on an enabled service and appropriate VRF/reachability/security controls. But this does not address the case requirement to protect administrative terminal traffic.

D:

Operator privileges and authentication servers control who can manage the switch. But this does not address the case requirement to protect administrative terminal traffic.

Question 202

Syslog entries from two core devices show different timestamps during a failover. What service should be configured?

  1. Management VRF isolation
  2. AAA administrative authorization
  3. Time synchronization via NTP
  4. DNS resolver configuration

Explanation

Correct Answer

C:

NTP aligns clocks across devices. Consistent clocks make distributed logs, certificates and event correlation reliable.

Incorrect Answers

A:

A separate VRF can keep management traffic apart from the ordinary production data-plane routes. But this does not address the case requirement to enable reliable timestamp correlation.

B:

Operator privileges and authentication servers control who can manage the switch. But this does not address the case requirement to enable reliable timestamp correlation.

D:

Management agents that use hostnames require correct resolver configuration. But this does not address the case requirement to enable reliable timestamp correlation.

Question 203

Cloud enrollment fails because the switch cannot resolve the management hostname. Which resolver dependency matters?

  1. DNS resolver configuration
  2. Management VRF isolation
  3. HTTPS REST service exposure
  4. AAA administrative authorization

Explanation

Correct Answer

A:

DNS configuration is required for name-based management endpoints. Management agents that use hostnames require correct resolver configuration.

Incorrect Answers

B:

A separate VRF can keep management traffic apart from the ordinary production data-plane routes. But this does not address the case requirement to resolve the configured service hostname.

C:

REST management access depends on an enabled service and appropriate VRF/reachability/security controls. But this does not address the case requirement to resolve the configured service hostname.

D:

Operator privileges and authentication servers control who can manage the switch. But this does not address the case requirement to resolve the configured service hostname.

Question 204

A junior NOC account can change routing when it should only inspect status. What security control needs improvement?

  1. DNS resolver configuration
  2. Time synchronization via NTP
  3. SSH administrative access
  4. AAA administrative authorization

Explanation

Correct Answer

D:

AAA authorization should match least-privilege job roles. Operator privileges and authentication servers control who can manage the switch.

Incorrect Answers

A:

Management agents that use hostnames require correct resolver configuration. But this does not address the case requirement to restrict administrative change rights.

B:

Consistent clocks make distributed logs, certificates and event correlation reliable. But this does not address the case requirement to restrict administrative change rights.

C:

Secure shell supports encrypted remote CLI sessions subject to management ACLs and identity. But this does not address the case requirement to restrict administrative change rights.

Question 205

A CX switch answers SSH over management VRF but its REST service is disabled there. Which service-level distinction matters?

  1. AAA administrative authorization
  2. Time synchronization via NTP
  3. Management VRF isolation
  4. HTTPS REST service exposure

Explanation

Correct Answer

D:

Each management service must be enabled and reachable on the intended VRF. REST management access depends on an enabled service and appropriate VRF/reachability/security controls.

Incorrect Answers

A:

Operator privileges and authentication servers control who can manage the switch. But this does not address the case requirement to permit approved HTTPS API access.

B:

Consistent clocks make distributed logs, certificates and event correlation reliable. But this does not address the case requirement to permit approved HTTPS API access.

C:

A separate VRF can keep management traffic apart from the ordinary production data-plane routes. But this does not address the case requirement to permit approved HTTPS API access.

Question 206

A log analysis tool falsely orders events because a switch clock is minutes behind. What infrastructure service addresses this?

  1. Time synchronization via NTP
  2. DNS resolver configuration
  3. AAA administrative authorization
  4. SSH administrative access

Explanation

Correct Answer

A:

Correct time sources support accurate auditing. Consistent clocks make distributed logs, certificates and event correlation reliable.

Incorrect Answers

B:

Management agents that use hostnames require correct resolver configuration. But this does not address the case requirement to synchronize operational timestamps.

C:

Operator privileges and authentication servers control who can manage the switch. But this does not address the case requirement to synchronize operational timestamps.

D:

Secure shell supports encrypted remote CLI sessions subject to management ACLs and identity. But this does not address the case requirement to synchronize operational timestamps.

Question 207

A management VLAN shares all routes with guest traffic, violating isolation requirements. Which control-plane layout should be reviewed?

  1. AAA administrative authorization
  2. DNS resolver configuration
  3. Management VRF isolation
  4. HTTPS REST service exposure

Explanation

Correct Answer

C:

A dedicated management VRF can separate administrative reachability. A separate VRF can keep management traffic apart from the ordinary production data-plane routes.

Incorrect Answers

A:

Operator privileges and authentication servers control who can manage the switch. But this does not address the case requirement to enforce distinct management routing boundaries.

B:

Management agents that use hostnames require correct resolver configuration. But this does not address the case requirement to enforce distinct management routing boundaries.

D:

REST management access depends on an enabled service and appropriate VRF/reachability/security controls. But this does not address the case requirement to enforce distinct management routing boundaries.

Question 208

A manager asks what commands currently govern a port, not what was saved last month. Which state should be inspected?

  1. Compare startup and running state
  2. Use change checkpoint and rollback
  3. Review applied ACL or policy
  4. Check running configuration

Explanation

Correct Answer

D:

Running configuration is the active source at observation time. The running configuration represents current active device settings at the time of inspection.

Incorrect Answers

A:

Differences explain why runtime fixes may not persist over a restart. But this does not address the case requirement to identify currently effective settings.

B:

A documented rollback state limits damage from failed configuration changes. But this does not address the case requirement to identify currently effective settings.

C:

Show commands can identify effective security settings and statistics on supported interfaces. But this does not address the case requirement to identify currently effective settings.

Question 209

A fiber uplink is down and the engineer needs operational speed plus error counters. Which evidence is relevant?

  1. Check running configuration
  2. Inspect interface operational status
  3. Use change checkpoint and rollback
  4. Compare startup and running state

Explanation

Correct Answer

B:

Interface operational data guides physical fault diagnosis. Link speed, errors, state and negotiated settings reveal physical behavior.

Incorrect Answers

A:

The running configuration represents current active device settings at the time of inspection. But this does not address the case requirement to inspect actual link statistics.

C:

A documented rollback state limits damage from failed configuration changes. But this does not address the case requirement to inspect actual link statistics.

D:

Differences explain why runtime fixes may not persist over a restart. But this does not address the case requirement to inspect actual link statistics.

Question 210

A routing protocol was configured but no neighbor forms. What output should be collected?

  1. Check running configuration
  2. Compare startup and running state
  3. Inspect neighbor and route state
  4. Use change checkpoint and rollback

Explanation

Correct Answer

C:

Neighbor and route status distinguish configured intent from actual adjacency. Routing and LACP control-plane show commands confirm peer and path formation.

Incorrect Answers

A:

The running configuration represents current active device settings at the time of inspection. But this does not address the case requirement to verify active control-plane peers.

B:

Differences explain why runtime fixes may not persist over a restart. But this does not address the case requirement to verify active control-plane peers.

D:

A documented rollback state limits damage from failed configuration changes. But this does not address the case requirement to verify active control-plane peers.

HPE Network Switching Professional (HPE7-A08) Practice Tests

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