HP HPE7-A08 Practice Test 39

Question 380

After implementing the approved change — Identify likely optic or fiber-layer faults using counters and optical diagnostics — for this scenario: A fiber connection logs high FCS errors and periodically loses carrier. Which observed result BEST verifies the outcome?

OSPF neighbors reach the intended state and routes appear after repair
A tested physical replacement eliminates link errors at the same load
Allowed traffic continues and the denied traffic matches the documented policy
The matched members become active after peer settings are aligned

Explanation

Correct Answer

A tested physical replacement eliminates link errors at the same load. This is the observable acceptance evidence for the decision to identify likely optic or fiber-layer faults using counters and optical diagnostics. It demonstrates the principle that cRC and physical alarms provide stronger link-health evidence than a lit LED.

Incorrect Answers

This verification choice fits a different situation: An OSPF neighbor remains down despite successful ICMP pings between peers. It does not resolve the stated failure mode. For this case, the decisive verification choice is to a tested physical replacement eliminates link errors at the same load.

This verification choice fits a different situation: Only a restricted subnet is unreachable while all ordinary traffic passes. It does not resolve the stated failure mode. For this case, the decisive verification choice is to a tested physical replacement eliminates link errors at the same load.

This verification choice fits a different situation: A bundle reports suspended members while each individual port appears link-up. It does not resolve the stated failure mode. For this case, the decisive verification choice is to a tested physical replacement eliminates link errors at the same load.

Question 381

An HPE Aruba Networking design review examines: A fiber connection logs high FCS errors and periodically loses carrier. Which technical principle BEST explains the required approach?

Endpoint addressing must match its VLAN and gateway network
DHCP forwarding must be explicitly configured across a routed boundary
OSPF control-plane compatibility differs from simple IP reachability
CRC and physical alarms provide stronger link-health evidence than a lit LED

Explanation

Correct Answer

CRC and physical alarms provide stronger link-health evidence than a lit LED. The case therefore calls for this specifically controlled action: identify likely optic or fiber-layer faults using counters and optical diagnostics. The acceptance evidence is that a tested physical replacement eliminates link errors at the same load.

Incorrect Answers

This principle choice fits a different situation: A user host has an IP address in the wrong subnet and cannot reach its gateway. It does not resolve the stated failure mode. For this case, the decisive principle choice is to cRC and physical alarms provide stronger link-health evidence than a lit LED.

This principle choice fits a different situation: A branch receives no DHCP leases following a routed VLAN migration. It does not resolve the stated failure mode. For this case, the decisive principle choice is to cRC and physical alarms provide stronger link-health evidence than a lit LED.

This principle choice fits a different situation: An OSPF neighbor remains down despite successful ICMP pings between peers. It does not resolve the stated failure mode. For this case, the decisive principle choice is to cRC and physical alarms provide stronger link-health evidence than a lit LED.

Question 382

A risk review for the following wired-network case asks what should be avoided: A fiber connection logs high FCS errors and periodically loses carrier. Which assumption creates the GREATEST implementation risk?

Disabling all security policy to make one application reachable
Changing an OSPF area to solve faulty fiber receive power
Adding an unrelated static IP route without verifying relay
Assuming physical carrier alone proves successful aggregation

Explanation

Correct Answer

Changing an OSPF area to solve faulty fiber receive power. That shortcut fails because cRC and physical alarms provide stronger link-health evidence than a lit LED. Instead, the appropriate approach is to identify likely optic or fiber-layer faults using counters and optical diagnostics.

Incorrect Answers

This misconception choice fits a different situation: Only a restricted subnet is unreachable while all ordinary traffic passes. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to changing an OSPF area to solve faulty fiber receive power.

This misconception choice fits a different situation: A branch receives no DHCP leases following a routed VLAN migration. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to changing an OSPF area to solve faulty fiber receive power.

This misconception choice fits a different situation: A bundle reports suspended members while each individual port appears link-up. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to changing an OSPF area to solve faulty fiber receive power.

Question 383

Before changing switch configuration, an engineer investigates: A fiber connection logs high FCS errors and periodically loses carrier. Which FIRST check is most useful for isolating the cause?

Inspect applied ACL rules, role decisions and traffic counters
Inspect trunk tagging and VLAN membership on the complete path
Inspect OSPF interface flags, neighbor messages and authentication
Inspect optical receive power, FCS counters and the patch path

Explanation

Correct Answer

Inspect optical receive power, FCS counters and the patch path. This first check isolates the relevant mechanism without an untested configuration change. It tests the rule that cRC and physical alarms provide stronger link-health evidence than a lit LED.

Incorrect Answers

This diagnostic choice fits a different situation: Only a restricted subnet is unreachable while all ordinary traffic passes. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to inspect optical receive power, FCS counters and the patch path.

This diagnostic choice fits a different situation: A printer in VLAN 30 works locally but cannot reach a print server over an uplink. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to inspect optical receive power, FCS counters and the patch path.

This diagnostic choice fits a different situation: An OSPF neighbor remains down despite successful ICMP pings between peers. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to inspect optical receive power, FCS counters and the patch path.

Question 384

An implementation change is planned for: A fiber connection logs high FCS errors and periodically loses carrier. Which preventive control BEST reduces unnecessary outage and security risk?

Include DHCP lease renewal in every routed VLAN cutover test
Record optic and fiber validation at installation
Require an explicit approval to enable a reserved access interface
Use a standardized OSPF peer template with staged adjacency checks

Explanation

Correct Answer

Record optic and fiber validation at installation. This safeguard is appropriate before the change to identify likely optic or fiber-layer faults using counters and optical diagnostics; it reduces exposure to the mistake of changing an OSPF area to solve faulty fiber receive power.

Incorrect Answers

This prevention choice fits a different situation: A branch receives no DHCP leases following a routed VLAN migration. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to record optic and fiber validation at installation.

This prevention choice fits a different situation: An access port shows administratively down even with a working patch cable. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to record optic and fiber validation at installation.

This prevention choice fits a different situation: An OSPF neighbor remains down despite successful ICMP pings between peers. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to record optic and fiber validation at installation.

Question 385

A first repair attempt for this situation failed: A fiber connection logs high FCS errors and periodically loses carrier. The review found the mistaken approach of changing an OSPF area to solve faulty fiber receive power. Which targeted recovery action BEST restores the intended design?

Replace the defective optic or patch and confirm error counters stabilize
Restore the intended admin state and validate the port profile
Correct the narrow rule or object reference without opening the entire network
Correct address assignment or DHCP scope and verify the local route

Explanation

Correct Answer

Replace the defective optic or patch and confirm error counters stabilize. This addresses the observed risk rather than hiding its symptoms. Confirm the repair when a tested physical replacement eliminates link errors at the same load.

Incorrect Answers

This remediation choice fits a different situation: An access port shows administratively down even with a working patch cable. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to replace the defective optic or patch and confirm error counters stabilize.

This remediation choice fits a different situation: Only a restricted subnet is unreachable while all ordinary traffic passes. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to replace the defective optic or patch and confirm error counters stabilize.

This remediation choice fits a different situation: A user host has an IP address in the wrong subnet and cannot reach its gateway. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to replace the defective optic or patch and confirm error counters stabilize.

Question 386

An HPE Aruba Networking engineer faces this wired-network scenario: A bundle reports suspended members while each individual port appears link-up. Which implementation action BEST addresses the requirement?

Identify likely optic or fiber-layer faults using counters and optical diagnostics
Identify a LACP peer or member consistency issue in the aggregate
Identify the absent or incorrect DHCP relay and server reachability
Identify ISL and keepalive states before modifying the peer's forwarding behavior

Explanation

Correct Answer

An operational LAG depends on compatible partner identity and settings. The targeted implementation is to identify a LACP peer or member consistency issue in the aggregate. The deployment succeeds when the matched members become active after peer settings are aligned.

Incorrect Answers

This implementation choice fits a different situation: A fiber connection logs high FCS errors and periodically loses carrier. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to identify a LACP peer or member consistency issue in the aggregate.

This implementation choice fits a different situation: A branch receives no DHCP leases following a routed VLAN migration. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to identify a LACP peer or member consistency issue in the aggregate.

This implementation choice fits a different situation: A VSX pair loses downstream LAG forwarding after an ISL interruption. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to identify a LACP peer or member consistency issue in the aggregate.

Question 387

After implementing the approved change — Identify a LACP peer or member consistency issue in the aggregate — for this scenario: A bundle reports suspended members while each individual port appears link-up. Which observed result BEST verifies the outcome?

The port state changes when deliberately enabled and passes traffic
Allowed traffic continues and the denied traffic matches the documented policy
A tested physical replacement eliminates link errors at the same load
The matched members become active after peer settings are aligned

Explanation

Correct Answer

The matched members become active after peer settings are aligned. This is the observable acceptance evidence for the decision to identify a LACP peer or member consistency issue in the aggregate. It demonstrates the principle that an operational LAG depends on compatible partner identity and settings.

Incorrect Answers

This verification choice fits a different situation: An access port shows administratively down even with a working patch cable. It does not resolve the stated failure mode. For this case, the decisive verification choice is to the matched members become active after peer settings are aligned.

This verification choice fits a different situation: Only a restricted subnet is unreachable while all ordinary traffic passes. It does not resolve the stated failure mode. For this case, the decisive verification choice is to the matched members become active after peer settings are aligned.

This verification choice fits a different situation: A fiber connection logs high FCS errors and periodically loses carrier. It does not resolve the stated failure mode. For this case, the decisive verification choice is to the matched members become active after peer settings are aligned.

Question 388

An HPE Aruba Networking design review examines: A bundle reports suspended members while each individual port appears link-up. Which technical principle BEST explains the required approach?

Administrative interface state is distinct from physical link detection
An operational LAG depends on compatible partner identity and settings
OSPF control-plane compatibility differs from simple IP reachability
VSX peer split handling responds differently to ISL versus keepalive failures

Explanation

Correct Answer

An operational LAG depends on compatible partner identity and settings. The case therefore calls for this specifically controlled action: identify a LACP peer or member consistency issue in the aggregate. The acceptance evidence is that the matched members become active after peer settings are aligned.

Incorrect Answers

This principle choice fits a different situation: An access port shows administratively down even with a working patch cable. It does not resolve the stated failure mode. For this case, the decisive principle choice is to an operational LAG depends on compatible partner identity and settings.

This principle choice fits a different situation: An OSPF neighbor remains down despite successful ICMP pings between peers. It does not resolve the stated failure mode. For this case, the decisive principle choice is to an operational LAG depends on compatible partner identity and settings.

This principle choice fits a different situation: A VSX pair loses downstream LAG forwarding after an ISL interruption. It does not resolve the stated failure mode. For this case, the decisive principle choice is to an operational LAG depends on compatible partner identity and settings.

Question 389

A risk review for the following wired-network case asks what should be avoided: A bundle reports suspended members while each individual port appears link-up. Which assumption creates the GREATEST implementation risk?

Changing an OSPF area to solve faulty fiber receive power
Replacing uplink hardware without checking the incorrect host IP mask
Replacing a good cable to fix an interface explicitly shutdown
Assuming physical carrier alone proves successful aggregation

Explanation

Correct Answer

Assuming physical carrier alone proves successful aggregation. That shortcut fails because an operational LAG depends on compatible partner identity and settings. Instead, the appropriate approach is to identify a LACP peer or member consistency issue in the aggregate.

Incorrect Answers

This misconception choice fits a different situation: A fiber connection logs high FCS errors and periodically loses carrier. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to assuming physical carrier alone proves successful aggregation.

This misconception choice fits a different situation: A user host has an IP address in the wrong subnet and cannot reach its gateway. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to assuming physical carrier alone proves successful aggregation.

This misconception choice fits a different situation: An access port shows administratively down even with a working patch cable. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to assuming physical carrier alone proves successful aggregation.

Question 390

Before changing switch configuration, an engineer investigates: A bundle reports suspended members while each individual port appears link-up. Which FIRST check is most useful for isolating the cause?

Inspect OSPF interface flags, neighbor messages and authentication
Inspect LACP partner state, aggregator key and member operational state
Inspect applied ACL rules, role decisions and traffic counters
Inspect trunk tagging and VLAN membership on the complete path

Explanation

Correct Answer

Inspect LACP partner state, aggregator key and member operational state. This first check isolates the relevant mechanism without an untested configuration change. It tests the rule that an operational LAG depends on compatible partner identity and settings.

Incorrect Answers

This diagnostic choice fits a different situation: An OSPF neighbor remains down despite successful ICMP pings between peers. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to inspect LACP partner state, aggregator key and member operational state.

This diagnostic choice fits a different situation: Only a restricted subnet is unreachable while all ordinary traffic passes. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to inspect LACP partner state, aggregator key and member operational state.

This diagnostic choice fits a different situation: A printer in VLAN 30 works locally but cannot reach a print server over an uplink. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to inspect LACP partner state, aggregator key and member operational state.

HPE Network Switching Professional (HPE7-A08) Practice Tests

HP HPE7-A08 Practice Test 37 - 10 Questions (Last Reviewed 05-Oct-2026)
HP HPE7-A08 Practice Test 38 - 10 Questions (Last Reviewed 04-Oct-2026)
HP HPE7-A08 Practice Test 39 - 10 Questions (Last Reviewed 03-Oct-2026)
HP HPE7-A08 Practice Test 40 - 10 Questions (Last Reviewed 02-Oct-2026)
HP HPE7-A08 Practice Test 41 - 10 Questions (Last Reviewed 01-Oct-2026)

Pass Your HP HPE7-A08 Exam Easy!

Question 380

Explanation

Correct Answer

Incorrect Answers

Question 381

Explanation

Correct Answer

Incorrect Answers

Question 382

Explanation

Correct Answer

Incorrect Answers

Question 383

Explanation

Correct Answer

Incorrect Answers

Question 384

Explanation

Correct Answer

Incorrect Answers

Question 385

Explanation

Correct Answer

Incorrect Answers

Question 386

Explanation

Correct Answer

Incorrect Answers

Question 387

Explanation

Correct Answer

Incorrect Answers

Question 388

Explanation

Correct Answer

Incorrect Answers

Question 389

Explanation

Correct Answer

Incorrect Answers

Question 390

Explanation

Correct Answer

Incorrect Answers

HPE Network Switching Professional (HPE7-A08) Practice Tests