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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 26

Question 250

At a design studio in Berlin, engineers report that a campus change causes frequent topology changes and MAC moves across an otherwise stable VLAN. The work affects wireless workstations and video conferences. Which test result most directly confirms the required behavior?

  1. Authorized lease responses pass from the approved server while a test rogue server on an edge port is blocked
  2. Tagged and untagged test frames enter their intended VLANs on both ends and unauthorized VLANs are not carried
  3. Expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms
  4. Positive and negative flow tests prove only authorized source, destination and service tuples pass

Explanation

Correct Answer

C:

This observation tests the RSTP root election and loop prevention requirement at a design studio in Berlin. The expected result is that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms. The necessary correction is to designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links; a saved configuration alone would not prove it is working. In this case, the observed fault is that a campus change causes frequent topology changes and MAC moves across an otherwise stable VLAN.

Incorrect Answers

A:

At a design studio in Berlin, this measures a different network requirement, DHCP snooping and rogue DHCP protection. The case describes that a campus change causes frequent topology changes and MAC moves across an otherwise stable VLAN, so accepting this result would leave the primary fault without direct verification.

B:

At a design studio in Berlin, this would verify VLAN trunk and native VLAN consistency, not the failure reported in this scenario. The requested closure criterion instead concerns RSTP root election and loop prevention: expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

D:

At a design studio in Berlin, this measures a different network requirement, Ingress ACL enforcement and least privilege. The case describes that a campus change causes frequent topology changes and MAC moves across an otherwise stable VLAN, so accepting this result would leave the primary fault without direct verification.

Question 251

During a planned campus-network change at a university faculty building in Boston, operators discover that a campus change causes frequent topology changes and MAC moves across an otherwise stable VLAN. The design must preserve teaching tools and shared printers. What configuration or diagnostic step is the best next move?

  1. Designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links
  2. Enable DHCP snooping where supported and trust only the genuine server-facing uplink, retaining clients as untrusted
  3. Apply appropriate edge-port STP protections and restrict unapproved downstream switching devices without blocking intended uplinks
  4. Create and validate the SVI on the correct VLAN with appropriate IP addressing, routing and permitted cross-VLAN policy

Explanation

Correct Answer

A:

The crucial symptom at a university faculty building in Boston is that a campus change causes frequent topology changes and MAC moves across an otherwise stable VLAN. The best response is to designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links. Confirm success by checking that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

Incorrect Answers

B:

At a university faculty building in Boston, the option addresses DHCP snooping and rogue DHCP protection rather than the reported issue. For the stated symptom, the expected evidence is that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

C:

At a university faculty building in Boston, that change is aimed at Layer-two edge protection and BPDU controls, not at the actual fault: a campus change causes frequent topology changes and MAC moves across an otherwise stable VLAN. A successful repair here must show that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

D:

Although this is a valid design approach for SVI gateway and inter-VLAN reachability in an appropriate case, it leaves the RSTP root election and loop prevention dependency untested. The observed condition at a university faculty building in Boston is that a campus change causes frequent topology changes and MAC moves across an otherwise stable VLAN.

Question 252

During a planned campus-network change at a university faculty building in Boston, operators discover that a campus change causes frequent topology changes and MAC moves across an otherwise stable VLAN. The design must preserve teaching tools and shared printers. What evidence should the engineer request after the repair?

  1. Endpoint ports avoid introducing a bridge loop while legitimate inter-switch links continue exchanging BPDUs normally
  2. Positive and negative flow tests prove only authorized source, destination and service tuples pass
  3. Clients in each subnet reach their local gateway and only the authorized inter-VLAN flows succeed
  4. Expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms

Explanation

Correct Answer

D:

This observation tests the RSTP root election and loop prevention requirement at a university faculty building in Boston. The expected result is that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms. The necessary correction is to designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links; a saved configuration alone would not prove it is working. In this case, the observed fault is that a campus change causes frequent topology changes and MAC moves across an otherwise stable VLAN.

Incorrect Answers

A:

At a university faculty building in Boston, this measures a different network requirement, Layer-two edge protection and BPDU controls. The case describes that a campus change causes frequent topology changes and MAC moves across an otherwise stable VLAN, so accepting this result would leave the primary fault without direct verification.

B:

At a university faculty building in Boston, this would verify Ingress ACL enforcement and least privilege, not the failure reported in this scenario. The requested closure criterion instead concerns RSTP root election and loop prevention: expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

C:

At a university faculty building in Boston, the observation may be useful for a separate SVI gateway and inter-VLAN reachability test, but it does not establish that a campus change causes frequent topology changes and MAC moves across an otherwise stable VLAN has been resolved. The relevant check is the RSTP root election and loop prevention outcome.

Question 253

At a utility control office in Raleigh, engineers report that a redundant edge link remains forwarding when the design expects it to be a loop-blocked alternate. The work affects monitoring dashboards and service desk access. Which change most directly addresses the stated failure?

  1. Create and validate the SVI on the correct VLAN with appropriate IP addressing, routing and permitted cross-VLAN policy
  2. Enable DHCP snooping where supported and trust only the genuine server-facing uplink, retaining clients as untrusted
  3. Designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links
  4. Match the switchport tagging, native VLAN and allowed VLAN list on each end of the campus trunk

Explanation

Correct Answer

C:

The crucial symptom at a utility control office in Raleigh is that a redundant edge link remains forwarding when the design expects it to be a loop-blocked alternate. The best response is to designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links. Confirm success by checking that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

Incorrect Answers

A:

At a utility control office in Raleigh, the option addresses SVI gateway and inter-VLAN reachability rather than the reported issue. For the stated symptom, the expected evidence is that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

B:

At a utility control office in Raleigh, that change is aimed at DHCP snooping and rogue DHCP protection, not at the actual fault: a redundant edge link remains forwarding when the design expects it to be a loop-blocked alternate. A successful repair here must show that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

D:

At a utility control office in Raleigh, the option addresses VLAN trunk and native VLAN consistency rather than the reported issue. For the stated symptom, the expected evidence is that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

Question 254

At a utility control office in Raleigh, engineers report that a redundant edge link remains forwarding when the design expects it to be a loop-blocked alternate. The work affects monitoring dashboards and service desk access. Which post-change observation is the strongest acceptance evidence?

  1. Expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms
  2. Positive and negative flow tests prove only authorized source, destination and service tuples pass
  3. Authorized lease responses pass from the approved server while a test rogue server on an edge port is blocked
  4. The intended active members participate in one operational LAG and a single member loss does not interrupt the logical interface

Explanation

Correct Answer

A:

This observation tests the RSTP root election and loop prevention requirement at a utility control office in Raleigh. The expected result is that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms. The necessary correction is to designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links; a saved configuration alone would not prove it is working. In this case, the observed fault is that a redundant edge link remains forwarding when the design expects it to be a loop-blocked alternate.

Incorrect Answers

B:

At a utility control office in Raleigh, the observation may be useful for a separate Ingress ACL enforcement and least privilege test, but it does not establish that a redundant edge link remains forwarding when the design expects it to be a loop-blocked alternate has been resolved. The relevant check is the RSTP root election and loop prevention outcome.

C:

At a utility control office in Raleigh, this measures a different network requirement, DHCP snooping and rogue DHCP protection. The case describes that a redundant edge link remains forwarding when the design expects it to be a loop-blocked alternate, so accepting this result would leave the primary fault without direct verification.

D:

At a utility control office in Raleigh, this would verify LACP aggregation and member consistency, not the failure reported in this scenario. The requested closure criterion instead concerns RSTP root election and loop prevention: expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

Question 255

During a planned campus-network change at an engineering school in Copenhagen, operators discover that a redundant edge link remains forwarding when the design expects it to be a loop-blocked alternate. The design must preserve lab networks and WLAN testing. Which implementation choice meets this requirement without broadening access?

  1. Match the switchport tagging, native VLAN and allowed VLAN list on each end of the campus trunk
  2. Align LACP mode, speed, member selection and VLAN parameters across both aggregation endpoints
  3. Create and validate the SVI on the correct VLAN with appropriate IP addressing, routing and permitted cross-VLAN policy
  4. Designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links

Explanation

Correct Answer

D:

The crucial symptom at an engineering school in Copenhagen is that a redundant edge link remains forwarding when the design expects it to be a loop-blocked alternate. The best response is to designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links. Confirm success by checking that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

Incorrect Answers

A:

At an engineering school in Copenhagen, the option addresses VLAN trunk and native VLAN consistency rather than the reported issue. For the stated symptom, the expected evidence is that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

B:

At an engineering school in Copenhagen, that change is aimed at LACP aggregation and member consistency, not at the actual fault: a redundant edge link remains forwarding when the design expects it to be a loop-blocked alternate. A successful repair here must show that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

C:

Although this is a valid design approach for SVI gateway and inter-VLAN reachability in an appropriate case, it leaves the RSTP root election and loop prevention dependency untested. The observed condition at an engineering school in Copenhagen is that a redundant edge link remains forwarding when the design expects it to be a loop-blocked alternate.

Question 256

During a planned campus-network change at an engineering school in Copenhagen, operators discover that a redundant edge link remains forwarding when the design expects it to be a loop-blocked alternate. The design must preserve lab networks and WLAN testing. Which test result most directly confirms the required behavior?

  1. The intended active members participate in one operational LAG and a single member loss does not interrupt the logical interface
  2. Positive and negative flow tests prove only authorized source, destination and service tuples pass
  3. Expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms
  4. Endpoint ports avoid introducing a bridge loop while legitimate inter-switch links continue exchanging BPDUs normally

Explanation

Correct Answer

C:

This observation tests the RSTP root election and loop prevention requirement at an engineering school in Copenhagen. The expected result is that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms. The necessary correction is to designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links; a saved configuration alone would not prove it is working. In this case, the observed fault is that a redundant edge link remains forwarding when the design expects it to be a loop-blocked alternate.

Incorrect Answers

A:

At an engineering school in Copenhagen, this would verify LACP aggregation and member consistency, not the failure reported in this scenario. The requested closure criterion instead concerns RSTP root election and loop prevention: expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

B:

At an engineering school in Copenhagen, the observation may be useful for a separate Ingress ACL enforcement and least privilege test, but it does not establish that a redundant edge link remains forwarding when the design expects it to be a loop-blocked alternate has been resolved. The relevant check is the RSTP root election and loop prevention outcome.

D:

At an engineering school in Copenhagen, this would verify Layer-two edge protection and BPDU controls, not the failure reported in this scenario. The requested closure criterion instead concerns RSTP root election and loop prevention: expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

Question 257

At a financial services campus in Zurich, engineers report that a new bridge with a superior bridge ID displaces the planned distribution-layer STP root. The work affects transaction processing and secure terminals. What configuration or diagnostic step is the best next move?

  1. Apply appropriate edge-port STP protections and restrict unapproved downstream switching devices without blocking intended uplinks
  2. Designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links
  3. Match the switchport tagging, native VLAN and allowed VLAN list on each end of the campus trunk
  4. Create and validate the SVI on the correct VLAN with appropriate IP addressing, routing and permitted cross-VLAN policy

Explanation

Correct Answer

B:

The crucial symptom at a financial services campus in Zurich is that a new bridge with a superior bridge ID displaces the planned distribution-layer STP root. The best response is to designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links. Confirm success by checking that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

Incorrect Answers

A:

At a financial services campus in Zurich, that change is aimed at Layer-two edge protection and BPDU controls, not at the actual fault: a new bridge with a superior bridge ID displaces the planned distribution-layer STP root. A successful repair here must show that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

C:

At a financial services campus in Zurich, the option addresses VLAN trunk and native VLAN consistency rather than the reported issue. For the stated symptom, the expected evidence is that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

D:

At a financial services campus in Zurich, that change is aimed at SVI gateway and inter-VLAN reachability, not at the actual fault: a new bridge with a superior bridge ID displaces the planned distribution-layer STP root. A successful repair here must show that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

Question 258

At a financial services campus in Zurich, engineers report that a new bridge with a superior bridge ID displaces the planned distribution-layer STP root. The work affects transaction processing and secure terminals. What evidence should the engineer request after the repair?

  1. Authorized lease responses pass from the approved server while a test rogue server on an edge port is blocked
  2. Tagged and untagged test frames enter their intended VLANs on both ends and unauthorized VLANs are not carried
  3. Clients in each subnet reach their local gateway and only the authorized inter-VLAN flows succeed
  4. Expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms

Explanation

Correct Answer

D:

This observation tests the RSTP root election and loop prevention requirement at a financial services campus in Zurich. The expected result is that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms. The necessary correction is to designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links; a saved configuration alone would not prove it is working. In this case, the observed fault is that a new bridge with a superior bridge ID displaces the planned distribution-layer STP root.

Incorrect Answers

A:

At a financial services campus in Zurich, the observation may be useful for a separate DHCP snooping and rogue DHCP protection test, but it does not establish that a new bridge with a superior bridge ID displaces the planned distribution-layer STP root has been resolved. The relevant check is the RSTP root election and loop prevention outcome.

B:

At a financial services campus in Zurich, this measures a different network requirement, VLAN trunk and native VLAN consistency. The case describes that a new bridge with a superior bridge ID displaces the planned distribution-layer STP root, so accepting this result would leave the primary fault without direct verification.

C:

At a financial services campus in Zurich, this would verify SVI gateway and inter-VLAN reachability, not the failure reported in this scenario. The requested closure criterion instead concerns RSTP root election and loop prevention: expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

Question 259

During a planned campus-network change at a public library in Portland, operators discover that a new bridge with a superior bridge ID displaces the planned distribution-layer STP root. The design must preserve staff and visitor wireless access. Which change most directly addresses the stated failure?

  1. Apply appropriate edge-port STP protections and restrict unapproved downstream switching devices without blocking intended uplinks
  2. Align LACP mode, speed, member selection and VLAN parameters across both aggregation endpoints
  3. Designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links
  4. Create and validate the SVI on the correct VLAN with appropriate IP addressing, routing and permitted cross-VLAN policy

Explanation

Correct Answer

C:

The crucial symptom at a public library in Portland is that a new bridge with a superior bridge ID displaces the planned distribution-layer STP root. The best response is to designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links. Confirm success by checking that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

Incorrect Answers

A:

At a public library in Portland, that change is aimed at Layer-two edge protection and BPDU controls, not at the actual fault: a new bridge with a superior bridge ID displaces the planned distribution-layer STP root. A successful repair here must show that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

B:

Although this is a valid design approach for LACP aggregation and member consistency in an appropriate case, it leaves the RSTP root election and loop prevention dependency untested. The observed condition at a public library in Portland is that a new bridge with a superior bridge ID displaces the planned distribution-layer STP root.

D:

At a public library in Portland, that change is aimed at SVI gateway and inter-VLAN reachability, not at the actual fault: a new bridge with a superior bridge ID displaces the planned distribution-layer STP root. A successful repair here must show that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

Question 260

During a planned campus-network change at a public library in Portland, operators discover that a new bridge with a superior bridge ID displaces the planned distribution-layer STP root. The design must preserve staff and visitor wireless access. Which post-change observation is the strongest acceptance evidence?

  1. Authorized lease responses pass from the approved server while a test rogue server on an edge port is blocked
  2. Expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms
  3. Endpoint ports avoid introducing a bridge loop while legitimate inter-switch links continue exchanging BPDUs normally
  4. Positive and negative flow tests prove only authorized source, destination and service tuples pass

Explanation

Correct Answer

B:

This observation tests the RSTP root election and loop prevention requirement at a public library in Portland. The expected result is that expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms. The necessary correction is to designate the intended spanning-tree root and validate port roles, priorities and topology-change information before enabling alternate links; a saved configuration alone would not prove it is working. In this case, the observed fault is that a new bridge with a superior bridge ID displaces the planned distribution-layer STP root.

Incorrect Answers

A:

At a public library in Portland, the observation may be useful for a separate DHCP snooping and rogue DHCP protection test, but it does not establish that a new bridge with a superior bridge ID displaces the planned distribution-layer STP root has been resolved. The relevant check is the RSTP root election and loop prevention outcome.

C:

At a public library in Portland, this would verify Layer-two edge protection and BPDU controls, not the failure reported in this scenario. The requested closure criterion instead concerns RSTP root election and loop prevention: expected root and blocked/forwarding port roles appear without persistent topology flaps or broadcast storms.

D:

At a public library in Portland, the observation may be useful for a separate Ingress ACL enforcement and least privilege test, but it does not establish that a new bridge with a superior bridge ID displaces the planned distribution-layer STP root has been resolved. The relevant check is the RSTP root election and loop prevention outcome.