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HP HPE7-A01 Bundle

Exam Code: HPE7-A01

Exam Name HPE Network Campus Access Professional

Certification Provider: HP

Corresponding Certification: HPE Aruba Networking Certified Professional - Campus Access

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HP HPE7-A01 Practice Test 22

Question 210

A floor switch connects APs but the uplink passes only the native VLAN while employee and voice SSIDs use tagged VLANs. Which failure mechanism best explains the observed behavior?

  1. Members with mismatched partner or key information cannot join the same LAG forwarding aggregator.
  2. Available PoE power or negotiated class is insufficient for the newer AP's operating requirements.
  3. The trunk's allowed-VLAN list excludes the tagged client networks.
  4. The endpoint is placed into a different broadcast domain than the required service.

Explanation

Correct Answer

C:

The symptoms fit this mechanism. A targeted response is to permit the required SSID VLAN IDs on the trunk and match native VLAN expectations on each side, followed by verification that tagged client frames pass the uplink on their intended VLANs without native-VLAN leakage.

Incorrect Answers

A:

That explanation fits a different case, such as when an LACP bundle has four member links, but only two forward because the partner uses a different aggregation key. The symptoms here are better explained by the trunk's allowed-VLAN list excludes the tagged client networks.

B:

That explanation fits a different case, such as when an access stack stops powering some APs after a larger radio model is deployed on the same ports. The symptoms here are better explained by the trunk's allowed-VLAN list excludes the tagged client networks.

D:

That explanation fits a different case, such as when a central services VLAN is on the approved trunk but a new access port uses a mismatched untagged VLAN. The symptoms here are better explained by the trunk's allowed-VLAN list excludes the tagged client networks.

Question 211

An AP in a new building gets an IP address but discovers no management controller where the design uses controller discovery. Which failure mechanism best explains the observed behavior?

  1. Incorrect clock time can invalidate otherwise legitimate certificates during secure connection setup.
  2. DHCP allocation alone does not provide controller discovery or controller-route reachability.
  3. Members with mismatched partner or key information cannot join the same LAG forwarding aggregator.
  4. Available PoE power or negotiated class is insufficient for the newer AP's operating requirements.

Explanation

Correct Answer

B:

The symptoms fit this mechanism. A targeted response is to configure the appropriate supported discovery mechanism and validate IP reachability to the intended controller, followed by verification that the AP discovers the correct controller and establishes its expected management session.

Incorrect Answers

A:

That explanation fits a different case, such as when an AP has a healthy uplink but reports that clock synchronization cannot reach a time source, breaking certificate-based provisioning. The symptoms here are better explained by DHCP allocation alone does not provide controller discovery or controller-route reachability.

C:

That explanation fits a different case, such as when an LACP bundle has four member links, but only two forward because the partner uses a different aggregation key. The symptoms here are better explained by DHCP allocation alone does not provide controller discovery or controller-route reachability.

D:

That explanation fits a different case, such as when an access stack stops powering some APs after a larger radio model is deployed on the same ports. The symptoms here are better explained by DHCP allocation alone does not provide controller discovery or controller-route reachability.

Question 212

A floor switch responds on the out-of-band management port, but traffic sourced from its default VRF cannot reach the telemetry server. Which failure mechanism best explains the observed behavior?

  1. The telemetry session uses a route table that has no destination path.
  2. Available PoE power or negotiated class is insufficient for the newer AP's operating requirements.
  3. Power delivery and the phone's voice VLAN classification are separate controls.
  4. The management and default VRFs maintain separate forwarding tables.

Explanation

Correct Answer

D:

The symptoms fit this mechanism. A targeted response is to configure the approved route and egress interface in the actual source VRF for telemetry, followed by verification that telemetry connections succeed when originated from the correct VRF and address.

Incorrect Answers

A:

That explanation fits a different case, such as when a campus switch forwards IPv4 client traffic but cannot send SNMP traps to a server because the trap destination is reachable only through another VRF. The symptoms here are better explained by the management and default VRFs maintain separate forwarding tables.

B:

That explanation fits a different case, such as when an access stack stops powering some APs after a larger radio model is deployed on the same ports. The symptoms here are better explained by the management and default VRFs maintain separate forwarding tables.

C:

That explanation fits a different case, such as when a VoIP handset receives power from an access switch but lands in the data VLAN rather than its intended voice VLAN. The symptoms here are better explained by the management and default VRFs maintain separate forwarding tables.

Question 213

A wireless building is connected to the core but a user VLAN is mapped inconsistently between the SSID profile and switch trunk. Which failure mechanism best explains the observed behavior?

  1. DHCP allocation alone does not provide controller discovery or controller-route reachability.
  2. The wireless access edge assigns clients to a VLAN that is missing from the intended wired transport.
  3. The two endpoints have incompatible advertised or enforced physical Ethernet capabilities.
  4. Members with mismatched partner or key information cannot join the same LAG forwarding aggregator.

Explanation

Correct Answer

B:

The symptoms fit this mechanism. A targeted response is to align the SSID VLAN assignment with an existing permitted VLAN and its routed gateway, followed by verification that clients associate, acquire correct addressing and reach approved destinations on the expected VLAN.

Incorrect Answers

A:

That explanation fits a different case, such as when an AP in a new building gets an IP address but discovers no management controller where the design uses controller discovery. The symptoms here are better explained by the wireless access edge assigns clients to a VLAN that is missing from the intended wired transport.

C:

That explanation fits a different case, such as when an IoT reader operates only at 100 Mbps, while the switch port is forced to a gigabit-only setting. The symptoms here are better explained by the wireless access edge assigns clients to a VLAN that is missing from the intended wired transport.

D:

That explanation fits a different case, such as when an LACP bundle has four member links, but only two forward because the partner uses a different aggregation key. The symptoms here are better explained by the wireless access edge assigns clients to a VLAN that is missing from the intended wired transport.

Question 214

A campus uses a highly available DNS name for the NAC service, yet one site resolves an obsolete server address. Which failure mechanism best explains the observed behavior?

  1. The management plane cannot reach cloud onboarding services over its selected network path.
  2. The access switch follows an outdated resolved address despite having a valid AAA profile.
  3. The wireless access edge assigns clients to a VLAN that is missing from the intended wired transport.
  4. Available PoE power or negotiated class is insufficient for the newer AP's operating requirements.

Explanation

Correct Answer

B:

The symptoms fit this mechanism. A targeted response is to correct the resolver configuration or stale DNS record and validate reachability to the current NAC service endpoint, followed by verification that requests reach the active NAC nodes and authenticating clients receive a timely decision.

Incorrect Answers

A:

That explanation fits a different case, such as when a new branch switch powers on but remains absent from Central after its management VLAN is provisioned. The symptoms here are better explained by the access switch follows an outdated resolved address despite having a valid AAA profile.

C:

That explanation fits a different case, such as when a wireless building is connected to the core but a user VLAN is mapped inconsistently between the SSID profile and switch trunk. The symptoms here are better explained by the access switch follows an outdated resolved address despite having a valid AAA profile.

D:

That explanation fits a different case, such as when an access stack stops powering some APs after a larger radio model is deployed on the same ports. The symptoms here are better explained by the access switch follows an outdated resolved address despite having a valid AAA profile.

Question 215

A VoIP handset receives power from an access switch but lands in the data VLAN rather than its intended voice VLAN. Which failure mechanism best explains the observed behavior?

  1. An IP-routed link does not propagate Ethernet broadcast domains merely because VLAN IDs match.
  2. The telemetry session uses a route table that has no destination path.
  3. Power delivery and the phone's voice VLAN classification are separate controls.
  4. DHCP allocation alone does not provide controller discovery or controller-route reachability.

Explanation

Correct Answer

C:

The symptoms fit this mechanism. A targeted response is to check the advertised voice VLAN policy and phone or switch support for the chosen discovery mechanism, followed by verification that the handset obtains its voice-subnet lease and user data traffic stays in the data VLAN.

Incorrect Answers

A:

That explanation fits a different case, such as when two campuses are connected over a routed WAN, but a team expects a new Layer 2 VLAN to extend automatically to the remote building. The symptoms here are better explained by power delivery and the phone's voice VLAN classification are separate controls.

B:

That explanation fits a different case, such as when a campus switch forwards IPv4 client traffic but cannot send SNMP traps to a server because the trap destination is reachable only through another VRF. The symptoms here are better explained by power delivery and the phone's voice VLAN classification are separate controls.

D:

That explanation fits a different case, such as when an AP in a new building gets an IP address but discovers no management controller where the design uses controller discovery. The symptoms here are better explained by power delivery and the phone's voice VLAN classification are separate controls.

Question 216

An access stack stops powering some APs after a larger radio model is deployed on the same ports. Which failure mechanism best explains the observed behavior?

  1. Optical carrier cannot override an administratively disabled interface.
  2. Management reachability does not determine ownership or intended cloud-management scope.
  3. The management and default VRFs maintain separate forwarding tables.
  4. Available PoE power or negotiated class is insufficient for the newer AP's operating requirements.

Explanation

Correct Answer

D:

The symptoms fit this mechanism. A targeted response is to validate the AP's PoE class and total switch power budget, then provision suitable power capacity, followed by verification that each AP draws the expected power allocation and remains stable with required radios enabled.

Incorrect Answers

A:

That explanation fits a different case, such as when an endpoint sees physical carrier on an Aruba CX port but the administrator configured the port administratively disabled. The symptoms here are better explained by available PoE power or negotiated class is insufficient for the newer AP's operating requirements.

B:

That explanation fits a different case, such as when a newly added downstream stack is reachable by ping but cannot complete Central group onboarding because it appears under the wrong tenant. The symptoms here are better explained by available PoE power or negotiated class is insufficient for the newer AP's operating requirements.

C:

That explanation fits a different case, such as when a floor switch responds on the out-of-band management port, but traffic sourced from its default VRF cannot reach the telemetry server. The symptoms here are better explained by available PoE power or negotiated class is insufficient for the newer AP's operating requirements.

Question 217

An endpoint sees physical carrier on an Aruba CX port but the administrator configured the port administratively disabled. Which failure mechanism best explains the observed behavior?

  1. Optical carrier cannot override an administratively disabled interface.
  2. Incorrect clock time can invalidate otherwise legitimate certificates during secure connection setup.
  3. The two endpoints have incompatible advertised or enforced physical Ethernet capabilities.
  4. An IP-routed link does not propagate Ethernet broadcast domains merely because VLAN IDs match.

Explanation

Correct Answer

A:

The symptoms fit this mechanism. A targeted response is to enable the intended interface after verifying its port role and safe connection policy, followed by verification that the port becomes operational and passes the intended traffic without changing the wrong adjacent port.

Incorrect Answers

B:

That explanation fits a different case, such as when an AP has a healthy uplink but reports that clock synchronization cannot reach a time source, breaking certificate-based provisioning. The symptoms here are better explained by optical carrier cannot override an administratively disabled interface.

C:

That explanation fits a different case, such as when an IoT reader operates only at 100 Mbps, while the switch port is forced to a gigabit-only setting. The symptoms here are better explained by optical carrier cannot override an administratively disabled interface.

D:

That explanation fits a different case, such as when two campuses are connected over a routed WAN, but a team expects a new Layer 2 VLAN to extend automatically to the remote building. The symptoms here are better explained by optical carrier cannot override an administratively disabled interface.

Question 218

An LACP bundle has four member links, but only two forward because the partner uses a different aggregation key. Which failure mechanism best explains the observed behavior?

  1. Management reachability does not determine ownership or intended cloud-management scope.
  2. Members with mismatched partner or key information cannot join the same LAG forwarding aggregator.
  3. Optical carrier cannot override an administratively disabled interface.
  4. An IP-routed link does not propagate Ethernet broadcast domains merely because VLAN IDs match.

Explanation

Correct Answer

B:

The symptoms fit this mechanism. A targeted response is to align the LACP aggregation parameters and intended member grouping at both ends, followed by verification that all intended members synchronize and participate according to the negotiated aggregator.

Incorrect Answers

A:

That explanation fits a different case, such as when a newly added downstream stack is reachable by ping but cannot complete Central group onboarding because it appears under the wrong tenant. The symptoms here are better explained by members with mismatched partner or key information cannot join the same LAG forwarding aggregator.

C:

That explanation fits a different case, such as when an endpoint sees physical carrier on an Aruba CX port but the administrator configured the port administratively disabled. The symptoms here are better explained by members with mismatched partner or key information cannot join the same LAG forwarding aggregator.

D:

That explanation fits a different case, such as when two campuses are connected over a routed WAN, but a team expects a new Layer 2 VLAN to extend automatically to the remote building. The symptoms here are better explained by members with mismatched partner or key information cannot join the same LAG forwarding aggregator.

Question 219

Two campuses are connected over a routed WAN, but a team expects a new Layer 2 VLAN to extend automatically to the remote building. Which failure mechanism best explains the observed behavior?

  1. The wireless access edge assigns clients to a VLAN that is missing from the intended wired transport.
  2. An IP-routed link does not propagate Ethernet broadcast domains merely because VLAN IDs match.
  3. The management and default VRFs maintain separate forwarding tables.
  4. The two endpoints have incompatible advertised or enforced physical Ethernet capabilities.

Explanation

Correct Answer

B:

The symptoms fit this mechanism. A targeted response is to use an approved routed inter-site design or an explicitly engineered supported overlay when Layer 2 extension is truly needed, followed by verification that remote hosts reach intended IP services with the approved routing or overlay design.

Incorrect Answers

A:

That explanation fits a different case, such as when a wireless building is connected to the core but a user VLAN is mapped inconsistently between the SSID profile and switch trunk. The symptoms here are better explained by an IP-routed link does not propagate Ethernet broadcast domains merely because VLAN IDs match.

C:

That explanation fits a different case, such as when a floor switch responds on the out-of-band management port, but traffic sourced from its default VRF cannot reach the telemetry server. The symptoms here are better explained by an IP-routed link does not propagate Ethernet broadcast domains merely because VLAN IDs match.

D:

That explanation fits a different case, such as when an IoT reader operates only at 100 Mbps, while the switch port is forced to a gigabit-only setting. The symptoms here are better explained by an IP-routed link does not propagate Ethernet broadcast domains merely because VLAN IDs match.

Question 220

A central services VLAN is on the approved trunk but a new access port uses a mismatched untagged VLAN. Which failure mechanism best explains the observed behavior?

  1. The trunk's allowed-VLAN list excludes the tagged client networks.
  2. The management plane cannot reach cloud onboarding services over its selected network path.
  3. Management reachability does not determine ownership or intended cloud-management scope.
  4. The endpoint is placed into a different broadcast domain than the required service.

Explanation

Correct Answer

D:

The symptoms fit this mechanism. A targeted response is to set the access interface's untagged VLAN and port mode to the approved endpoint network, followed by verification that the endpoint obtains a lease from the expected subnet and retains only its assigned VLAN.

Incorrect Answers

A:

That explanation fits a different case, such as when a floor switch connects APs but the uplink passes only the native VLAN while employee and voice SSIDs use tagged VLANs. The symptoms here are better explained by the endpoint is placed into a different broadcast domain than the required service.

B:

That explanation fits a different case, such as when a new branch switch powers on but remains absent from Central after its management VLAN is provisioned. The symptoms here are better explained by the endpoint is placed into a different broadcast domain than the required service.

C:

That explanation fits a different case, such as when a newly added downstream stack is reachable by ping but cannot complete Central group onboarding because it appears under the wrong tenant. The symptoms here are better explained by the endpoint is placed into a different broadcast domain than the required service.