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HP HPE7-A01 Practice Test 7

Question 60

An office experiences poor client response after an uplink is moved from 1 to 10 Gbps. What precaution is most important before the change is expanded?

  1. Benchmark a representative workload before and after the upgrade
  2. Maintain voice service rollback and test emergency-call requirements where applicable
  3. Keep a known-good port profile and test bootstrap after each closet change
  4. Document an approved MTU value and rollback when the path includes third-party equipment

Explanation

Correct Answer

A:

Comparable traffic baselines make performance claims defensible. End-to-end counters reveal whether the upgraded link is actually the limiting segment.

Incorrect Answers

B:

An apparently minor edge change can affect critical telephony. It would not resolve the documented symptom; comparable traffic baselines make performance claims defensible.

C:

A repeatable baseline prevents fleet-wide AP address errors. In this situation, comparable traffic baselines make performance claims defensible.

D:

Inconsistent jumbo settings are difficult to troubleshoot after users move. By contrast, comparable traffic baselines make performance claims defensible.

Question 61

A campus requires IP telephony to receive addressing and reach a call controller after a VLAN change. Which configuration decision most directly resolves the situation?

  1. Deploy an isolated guest VLAN or role with approved internet-only policy
  2. Configure the intended voice VLAN, DHCP options and routed controller path
  3. Place management interfaces in an approved management VLAN or routing instance with restrictive access policy
  4. Use the organization's supported secure onboarding and configuration-management process

Explanation

Correct Answer

B:

Voice endpoints need both correct segmentation and service discovery. IP assignment alone cannot prove call-control reachability.

Incorrect Answers

A:

Shared wireless hardware need not imply shared internal reachability. By contrast, voice endpoints need both correct segmentation and service discovery.

C:

Management reachability should not share unrestricted client trust. It would not resolve the documented symptom; voice endpoints need both correct segmentation and service discovery.

D:

Repeatable enrollment can apply the correct template after device identity is verified. The relevant technical distinction is that voice endpoints need both correct segmentation and service discovery.

Question 62

A campus requires IP telephony to receive addressing and reach a call controller after a VLAN change. Which check most directly demonstrates the desired network behavior?

  1. Inspect LACP and spanning-tree state before placing the new link in production
  2. Inspect trunk allowed VLANs, client ARP and a test default-gateway ping
  3. Confirm assigned voice subnet, DHCP options, and a successful controller registration
  4. Compare interface error rates and utilization on the full client path

Explanation

Correct Answer

C:

IP assignment alone cannot prove call-control reachability. Voice endpoints need both correct segmentation and service discovery.

Incorrect Answers

A:

Both protocols affect whether frames circulate or one path is intentionally blocked. The relevant technical distinction is that iP assignment alone cannot prove call-control reachability.

B:

These observations isolate whether frames reach the intended routed interface. By contrast, iP assignment alone cannot prove call-control reachability.

D:

End-to-end counters reveal whether the upgraded link is actually the limiting segment. Here, however, iP assignment alone cannot prove call-control reachability.

Question 63

A campus requires IP telephony to receive addressing and reach a call controller after a VLAN change. Which assumption would be most misleading when investigating this situation?

  1. Assume matching switch hostnames automatically restore production VLAN configurations
  2. Change the AP's wireless transmit power to force a better management address
  3. Treat a successful PoE negotiation as evidence the phone has the correct voice configuration
  4. Assume enough free copper ports also means enough electrical power for all APs

Explanation

Correct Answer

C:

Power delivery is distinct from addressing and registration. Voice endpoints need both correct segmentation and service discovery.

Incorrect Answers

A:

A label does not recreate port profiles or allowed tags. Here, however, power delivery is distinct from addressing and registration.

B:

Radio power cannot select the correct wired DHCP scope. In this situation, power delivery is distinct from addressing and registration.

D:

Port availability and PoE budget are separate design constraints. The relevant technical distinction is that power delivery is distinct from addressing and registration.

Question 64

A campus requires IP telephony to receive addressing and reach a call controller after a VLAN change. Which safeguard best reduces the deployment risk in this case?

  1. Pilot profile assignment on a few moved devices and review negative access tests
  2. Document explicit failover routes and approved path symmetry exceptions
  3. Benchmark a representative workload before and after the upgrade
  4. Maintain voice service rollback and test emergency-call requirements where applicable

Explanation

Correct Answer

D:

An apparently minor edge change can affect critical telephony. IP assignment alone cannot prove call-control reachability.

Incorrect Answers

A:

Staged validation catches over-permissive ports before a whole-floor rollout. Here, however, an apparently minor edge change can affect critical telephony.

B:

Changes in topology can cause stateful devices to drop asymmetric flows. In this situation, an apparently minor edge change can affect critical telephony.

C:

Comparable traffic baselines make performance claims defensible. It would not resolve the documented symptom; an apparently minor edge change can affect critical telephony.

Question 65

A warehouse adds IoT devices that must reach a cloud endpoint but not sensitive office hosts. What is the most appropriate first technical change?

  1. Place management interfaces in an approved management VLAN or routing instance with restrictive access policy
  2. Select a supported aggregation or loop-prevention design based on the actual topology
  3. Create a dedicated IoT segment with a narrow outbound access policy
  4. Configure approved redundant resolver and time sources reachable from management VLANs

Explanation

Correct Answer

C:

Restricted reachability limits risk from unmanaged endpoints. Positive and negative tests establish the actual trust boundary.

Incorrect Answers

A:

Management reachability should not share unrestricted client trust. In this situation, restricted reachability limits risk from unmanaged endpoints.

B:

Parallel Ethernet paths require either negotiated bundling or controlled redundancy. By contrast, restricted reachability limits risk from unmanaged endpoints.

D:

Correct name resolution and time are foundations for authentication and log correlation. It would not resolve the documented symptom; restricted reachability limits risk from unmanaged endpoints.

Question 66

A warehouse adds IoT devices that must reach a cloud endpoint but not sensitive office hosts. Which observation would best verify that the intended behavior is working?

  1. Verify the IoT application's cloud session succeeds while office-subnet probes are blocked
  2. Check device registration, expected software level and effective port configuration
  3. Capture DHCP discovery and inspect the server's selected scope and resulting lease
  4. Inspect trunk allowed VLANs, client ARP and a test default-gateway ping

Explanation

Correct Answer

A:

Positive and negative tests establish the actual trust boundary. Restricted reachability limits risk from unmanaged endpoints.

Incorrect Answers

B:

A powered-up device may not yet have received its authorized profile. It would not resolve the documented symptom; positive and negative tests establish the actual trust boundary.

C:

Packet and lease evidence tie the symptom to a specific addressing path. By contrast, positive and negative tests establish the actual trust boundary.

D:

These observations isolate whether frames reach the intended routed interface. The relevant technical distinction is that positive and negative tests establish the actual trust boundary.

Question 67

A warehouse adds IoT devices that must reach a cloud endpoint but not sensitive office hosts. Which belief about the configuration should the team reject?

  1. Assume a floor-plan marker always reflects the AP's connected switch port
  2. Place IoT devices in the default office VLAN because both classes need DNS
  3. Connect a second unmanaged Ethernet cable and assume redundant paths cannot form loops
  4. Copy an unrelated uplink trunk profile onto every user edge port

Explanation

Correct Answer

B:

Shared utility services do not require unrestricted peer access. Restricted reachability limits risk from unmanaged endpoints.

Incorrect Answers

A:

Cabling moves can invalidate drawings while the AP stays physically mounted. By contrast, shared utility services do not require unrestricted peer access.

C:

A loop can amplify broadcasts and destabilize the entire VLAN. Here, however, shared utility services do not require unrestricted peer access.

D:

A broad trunk can expose VLANs to untrusted endpoints. The relevant technical distinction is that shared utility services do not require unrestricted peer access.

Question 68

A warehouse adds IoT devices that must reach a cloud endpoint but not sensitive office hosts. What should be included in the rollout plan to limit a foreseeable failure?

  1. Monitor exceptions and document device ownership and patch responsibility
  2. Leave expansion headroom and identify redundant uplink paths before ordering switches
  3. Keep a switch-port migration matrix and run one test client before moving the entire floor
  4. Keep a known-good port profile and test bootstrap after each closet change

Explanation

Correct Answer

A:

Device inventory and access control should remain consistent after rollout. Positive and negative tests establish the actual trust boundary.

Incorrect Answers

B:

The closet should not require a new chassis for the first modest growth. Here, however, device inventory and access control should remain consistent after rollout.

C:

A phased cutover limits outage if one port profile is wrong. The relevant technical distinction is that device inventory and access control should remain consistent after rollout.

D:

A repeatable baseline prevents fleet-wide AP address errors. In this situation, device inventory and access control should remain consistent after rollout.

Question 69

A campus upgrade moves users from local switching to a routed distribution layer. What should the network engineer do to address this requirement?

  1. Design the approved VLAN-to-SVI gateway placement and required routed uplinks
  2. Deploy an isolated guest VLAN or role with approved internet-only policy
  3. Select a supported aggregation or loop-prevention design based on the actual topology
  4. Verify dual-stack gateway advertisements, VLAN membership and IPv6 routing

Explanation

Correct Answer

A:

Gateway location determines broadcast boundaries and first-hop reachability. A full-path trace checks both L2 and L3 decisions.

Incorrect Answers

B:

Shared wireless hardware need not imply shared internal reachability. Here, however, gateway location determines broadcast boundaries and first-hop reachability.

C:

Parallel Ethernet paths require either negotiated bundling or controlled redundancy. It would not resolve the documented symptom; gateway location determines broadcast boundaries and first-hop reachability.

D:

IPv6 clients may depend on router advertisements and prefixes separate from IPv4 DHCP. In this situation, gateway location determines broadcast boundaries and first-hop reachability.

Question 70

A campus upgrade moves users from local switching to a routed distribution layer. Which TWO actions together implement the required change and verify that it works? Choose TWO.

  1. Size access ports, PoE capacity and uplink bandwidth against the documented device inventory
  2. Document an approved MTU value and rollback when the path includes third-party equipment
  3. Design the approved VLAN-to-SVI gateway placement and required routed uplinks
  4. Restore the correct uplink VLAN assignments and downstream gateway reachability
  5. Trace a client packet through its access VLAN, SVI and distribution route

Explanation

Correct Answers

C:

Gateway location determines broadcast boundaries and first-hop reachability. A full-path trace checks both L2 and L3 decisions.

E:

A full-path trace checks both L2 and L3 decisions. Gateway location determines broadcast boundaries and first-hop reachability.

Incorrect Answers

A:

Physical deployment must account for client ports and powered APs. By contrast, gateway location determines broadcast boundaries and first-hop reachability.

B:

Inconsistent jumbo settings are difficult to troubleshoot after users move. It would not resolve the documented symptom; incorrect gateway changes can interrupt entire floors.

D:

Edge migration requires the same approved VLAN path to the L3 gateway. In this situation, gateway location determines broadcast boundaries and first-hop reachability.

HPE Network Campus Access Professional (HPE7-A01) Practice Tests

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