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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.
- Size access ports, PoE capacity and uplink bandwidth against the documented device inventory
- Document an approved MTU value and rollback when the path includes third-party equipment
- Design the approved VLAN-to-SVI gateway placement and required routed uplinks
- Restore the correct uplink VLAN assignments and downstream gateway reachability
- 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.
Question 71
A campus upgrade moves users from local switching to a routed distribution layer. Which misconception is most likely to obstruct a correct fix?
- Assume a routed uplink continues to forward every previous VLAN without additional design
- Assume a floor-plan marker always reflects the AP's connected switch port
- Copy an unrelated uplink trunk profile onto every user edge port
- Use a different guest SSID name without applying different VLAN or role policy
Explanation
Correct Answer
A:L3 interfaces do not automatically trunk arbitrary Layer 2 segments. Gateway location determines broadcast boundaries and first-hop reachability.
Incorrect Answers
B:Cabling moves can invalidate drawings while the AP stays physically mounted. By contrast, l3 interfaces do not automatically trunk arbitrary Layer 2 segments.
C:A broad trunk can expose VLANs to untrusted endpoints. The relevant technical distinction is that l3 interfaces do not automatically trunk arbitrary Layer 2 segments.
D:An SSID label alone does not create network isolation. It would not resolve the documented symptom; l3 interfaces do not automatically trunk arbitrary Layer 2 segments.
Question 72
A campus upgrade moves users from local switching to a routed distribution layer. What precaution is most important before the change is expanded?
- Check guest DNS and captive-portal continuity during upstream failover
- Pilot profile assignment on a few moved devices and review negative access tests
- Monitor upstream service availability and protect time-source authenticity
- Stage gateway migration by subnet with DHCP and return-route checks
Explanation
Correct Answer
D:Incorrect gateway changes can interrupt entire floors. A full-path trace checks both L2 and L3 decisions.
Incorrect Answers
A:The guest design should remain secure when a link changes. Here, however, incorrect gateway changes can interrupt entire floors.
B:Staged validation catches over-permissive ports before a whole-floor rollout. By contrast, incorrect gateway changes can interrupt entire floors.
C:Incorrect time can break certificates and audit trails. The relevant technical distinction is that incorrect gateway changes can interrupt entire floors.
Question 73
A new AP uplink connects at a port configured for a single user VLAN. Which configuration decision most directly resolves the situation?
- Check the tagged management VLAN and DHCP relay or server scope for that subnet
- Configure approved redundant resolver and time sources reachable from management VLANs
- Restore the correct uplink VLAN assignments and downstream gateway reachability
- Apply the approved AP port profile with required management and client VLAN transport
Explanation
Correct Answer
D:Access points may need tagged network segments beyond a single untagged VLAN. Both control connectivity and client forwarding must be supported.
Incorrect Answers
A:Incorrect tagging can direct an AP into the wrong address pool. The relevant technical distinction is that access points may need tagged network segments beyond a single untagged VLAN.
B:Correct name resolution and time are foundations for authentication and log correlation. Here, however, access points may need tagged network segments beyond a single untagged VLAN.
C:Edge migration requires the same approved VLAN path to the L3 gateway. In this situation, access points may need tagged network segments beyond a single untagged VLAN.
Question 74
A new AP uplink connects at a port configured for a single user VLAN. Which check most directly demonstrates the desired network behavior?
- Verify the IoT application's cloud session succeeds while office-subnet probes are blocked
- Inspect the AP management address and client VLAN tags on the switch interface
- Trace source and destination paths in both directions through the new closet
- Confirm guest DHCP, external browsing and denied access to clinical subnets
Explanation
Correct Answer
B:Both control connectivity and client forwarding must be supported. Access points may need tagged network segments beyond a single untagged VLAN.
Incorrect Answers
A:Positive and negative tests establish the actual trust boundary. In this situation, both control connectivity and client forwarding must be supported.
C:A reciprocal path test identifies unexpected policy or routing asymmetry. It would not resolve the documented symptom; both control connectivity and client forwarding must be supported.
D:The boundary is meaningful only when both paths are tested. Here, however, both control connectivity and client forwarding must be supported.
Question 75
A new AP uplink connects at a port configured for a single user VLAN. Which assumption would be most misleading when investigating this situation?
- Treat a successful PoE negotiation as evidence the phone has the correct voice configuration
- Assume any Ethernet port that powers an AP also carries all its SSID VLANs
- Ship devices with shared default admin credentials and assume provisioning fixes exposure later
- Assume an operational IPv4 default gateway automatically supplies IPv6 routing
Explanation
Correct Answer
B:PoE and trunk membership are independent settings. Access points may need tagged network segments beyond a single untagged VLAN.
Incorrect Answers
A:Power delivery is distinct from addressing and registration. By contrast, poE and trunk membership are independent settings.
C:Default credentials create risk during the bootstrap window. In this situation, poE and trunk membership are independent settings.
D:IP versions maintain separate addressing and neighbor mechanisms. It would not resolve the documented symptom; poE and trunk membership are independent settings.
Question 76
A new AP uplink connects at a port configured for a single user VLAN. Which safeguard best reduces the deployment risk in this case?
- Test a link failure with loop-prevention settings recorded and peer-reviewed
- Stage gateway migration by subnet with DHCP and return-route checks
- Pilot one AP with each expected SSID before cloning the profile
- Document an approved MTU value and rollback when the path includes third-party equipment
Explanation
Correct Answer
C:One missing tag can affect a particular user group across many APs. Both control connectivity and client forwarding must be supported.
Incorrect Answers
A:Recovery should not reintroduce a broadcast storm. By contrast, one missing tag can affect a particular user group across many APs.
B:Incorrect gateway changes can interrupt entire floors. The relevant technical distinction is that one missing tag can affect a particular user group across many APs.
D:Inconsistent jumbo settings are difficult to troubleshoot after users move. It would not resolve the documented symptom; one missing tag can affect a particular user group across many APs.
Question 77
A site interconnect adds a third network closet but produces asymmetric return traffic. What is the most appropriate first technical change?
- Confirm addressing, routing and uplink path design in both directions
- Configure the intended voice VLAN, DHCP options and routed controller path
- Size access ports, PoE capacity and uplink bandwidth against the documented device inventory
- Create a verified cable, switch-port and AP-name inventory before deployment
Explanation
Correct Answer
A:Successful forward routing does not guarantee a valid return path. A reciprocal path test identifies unexpected policy or routing asymmetry.
Incorrect Answers
B:Voice endpoints need both correct segmentation and service discovery. By contrast, successful forward routing does not guarantee a valid return path.
C:Physical deployment must account for client ports and powered APs. The relevant technical distinction is that successful forward routing does not guarantee a valid return path.
D:Known physical topology prevents onboarding the wrong device to an incorrect service profile. Here, however, successful forward routing does not guarantee a valid return path.
Question 78
A site interconnect adds a third network closet but produces asymmetric return traffic. Which observation would best verify that the intended behavior is working?
- Confirm guest DHCP, external browsing and denied access to clinical subnets
- Inspect trunk allowed VLANs, client ARP and a test default-gateway ping
- Trace source and destination paths in both directions through the new closet
- Capture DHCP discovery and inspect the server's selected scope and resulting lease
Explanation
Correct Answer
C:A reciprocal path test identifies unexpected policy or routing asymmetry. Successful forward routing does not guarantee a valid return path.
Incorrect Answers
A:The boundary is meaningful only when both paths are tested. The relevant technical distinction is that a reciprocal path test identifies unexpected policy or routing asymmetry.
B:These observations isolate whether frames reach the intended routed interface. In this situation, a reciprocal path test identifies unexpected policy or routing asymmetry.
D:Packet and lease evidence tie the symptom to a specific addressing path. Here, however, a reciprocal path test identifies unexpected policy or routing asymmetry.
Question 79
A site interconnect adds a third network closet but produces asymmetric return traffic. Which belief about the configuration should the team reject?
- Assume enough free copper ports also means enough electrical power for all APs
- Assume Ethernet link-up ensures all jumbo frames can cross intermediate devices
- Ship devices with shared default admin credentials and assume provisioning fixes exposure later
- Conclude the subnet is healthy from a single one-way traceroute
Explanation
Correct Answer
D:Forward reachability alone does not validate the return path. Successful forward routing does not guarantee a valid return path.
Incorrect Answers
A:Port availability and PoE budget are separate design constraints. It would not resolve the documented symptom; forward reachability alone does not validate the return path.
B:Link negotiation does not negotiate end-to-end frame size. Here, however, forward reachability alone does not validate the return path.
C:Default credentials create risk during the bootstrap window. In this situation, forward reachability alone does not validate the return path.
Question 80
A site interconnect adds a third network closet but produces asymmetric return traffic. What should be included in the rollout plan to limit a foreseeable failure?
- Pilot profile assignment on a few moved devices and review negative access tests
- Keep a switch-port migration matrix and run one test client before moving the entire floor
- Test a link failure with loop-prevention settings recorded and peer-reviewed
- Document explicit failover routes and approved path symmetry exceptions
Explanation
Correct Answer
D:Changes in topology can cause stateful devices to drop asymmetric flows. A reciprocal path test identifies unexpected policy or routing asymmetry.
Incorrect Answers
A:Staged validation catches over-permissive ports before a whole-floor rollout. It would not resolve the documented symptom; changes in topology can cause stateful devices to drop asymmetric flows.
B:A phased cutover limits outage if one port profile is wrong. In this situation, changes in topology can cause stateful devices to drop asymmetric flows.
C:Recovery should not reintroduce a broadcast storm. By contrast, changes in topology can cause stateful devices to drop asymmetric flows.
HPE Network Campus Access Professional (HPE7-A01) Practice Tests