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Question 30
A campus AP is powered but intermittently reboots after a network closet is expanded. Which observation would best verify that the intended behavior is working?
- Verify the phone advertises and uses the intended voice VLAN while the workstation stays in data VLAN
- Inspect channel utilization, retransmissions and nearby BSS identifiers at operating hours
- Correlate PoE draw, switch budget alarms and AP reboot times
- Review client capabilities, channel utilization and measured user throughput during a dense test
Explanation
Correct Answer
C:Power telemetry ties device resets to the source supply. High-power APs may need the correct PSE allocation even when the Ethernet link works.
Incorrect Answers
A:Both endpoint classes must receive the correct L2 membership. In this situation, power telemetry ties device resets to the source supply.
B:Air utilization exposes contention that signal-strength readings alone conceal. By contrast, power telemetry ties device resets to the source supply.
D:A advertised radio rate does not prove application-level benefit. It would not resolve the documented symptom; power telemetry ties device resets to the source supply.
Question 31
A campus AP is powered but intermittently reboots after a network closet is expanded. Which belief about the configuration should the team reject?
- Assume an IP subnet name alone prevents Layer 2 broadcasts between connected ports
- Treat a successful wireless association as proof the wired VLAN has an uplink route
- Assume LLDP discovery alone creates the required VLAN forwarding configuration
- Assume a lit Ethernet link confirms sufficient PoE power under all radio loads
Explanation
Correct Answer
D:Link negotiation does not guarantee continuous power at peak consumption. High-power APs may need the correct PSE allocation even when the Ethernet link works.
Incorrect Answers
A:Logical IP naming does not rewrite switch membership or 802.1Q tags. The relevant technical distinction is that link negotiation does not guarantee continuous power at peak consumption.
B:Association does not demonstrate a working downstream Ethernet path. By contrast, link negotiation does not guarantee continuous power at peak consumption.
C:Neighbor discovery advertises capabilities but does not replace switch VLAN membership. It would not resolve the documented symptom; link negotiation does not guarantee continuous power at peak consumption.
Question 32
A campus AP is powered but intermittently reboots after a network closet is expanded. What should be included in the rollout plan to limit a foreseeable failure?
- Restrict trunk allowed VLAN lists to approved segments and record exceptions
- Confirm approved modules and test the fiber path before the change window
- Reserve PoE headroom and prioritize critical APs in the switch budget
- Check the resulting trust boundary so an untrusted laptop cannot freely join the voice VLAN
Explanation
Correct Answer
C:A fully consumed PoE supply can disrupt multiple nearby devices. Power telemetry ties device resets to the source supply.
Incorrect Answers
A:Broad default trunking can expose segments beyond their intended area. The relevant technical distinction is that a fully consumed PoE supply can disrupt multiple nearby devices.
B:Replacement optics should be ready before an unsupported pairing strands the uplink. Here, however, a fully consumed PoE supply can disrupt multiple nearby devices.
D:Voice tagging should not allow unintended access to a more trusted segment. By contrast, a fully consumed PoE supply can disrupt multiple nearby devices.
Question 33
A campus design must separate 802.11 client roaming from the wired 802.3 uplink between access points and switches. What should the network engineer do to address this requirement?
- Confirm 802.1Q VLAN tagging and access/trunk membership at every relevant switch hop
- Plan channel selection and contention using 802.11 wireless medium behavior
- Document the WLAN association process and the wired VLAN transport as separate forwarding stages
- Use a documented voice-VLAN and data-VLAN arrangement supported by the access switch
Explanation
Correct Answer
C:The radio connection and uplink tagging have different failure modes. A connected SSID can still fail because of an incorrect wired port profile.
Incorrect Answers
A:The VLAN boundary must be maintained on all links carrying the traffic. In this situation, the radio connection and uplink tagging have different failure modes.
B:Wi-Fi stations share airtime, so overlapping transmitters affect performance even with different SSIDs. The relevant technical distinction is that the radio connection and uplink tagging have different failure modes.
D:Tagged voice traffic can be separated from ordinary client data on the same port. Here, however, the radio connection and uplink tagging have different failure modes.
Question 34
A campus design must separate 802.11 client roaming from the wired 802.3 uplink between access points and switches. What should the team inspect to confirm the result?
- Compare tagged VLAN IDs and learned MAC address tables from source to destination
- Check client association and the switch port's VLAN forwarding independently
- Inspect channel utilization, retransmissions and nearby BSS identifiers at operating hours
- Review client capabilities, channel utilization and measured user throughput during a dense test
Explanation
Correct Answer
B:A connected SSID can still fail because of an incorrect wired port profile. The radio connection and uplink tagging have different failure modes.
Incorrect Answers
A:A consistent tag path explains where Layer 2 isolation succeeds or fails. Here, however, a connected SSID can still fail because of an incorrect wired port profile.
C:Air utilization exposes contention that signal-strength readings alone conceal. It would not resolve the documented symptom; a connected SSID can still fail because of an incorrect wired port profile.
D:A advertised radio rate does not prove application-level benefit. In this situation, a connected SSID can still fail because of an incorrect wired port profile.
Question 35
A campus design must separate 802.11 client roaming from the wired 802.3 uplink between access points and switches. Which misconception is most likely to obstruct a correct fix?
- Treat a successful wireless association as proof the wired VLAN has an uplink route
- Assume every legacy Wi-Fi station gains all 802.11ax features without compatible radios
- Assume a lit Ethernet link confirms sufficient PoE power under all radio loads
- Assume any pair of SFP modules negotiates through different fiber wavelengths automatically
Explanation
Correct Answer
A:Association does not demonstrate a working downstream Ethernet path. The radio connection and uplink tagging have different failure modes.
Incorrect Answers
B:Wireless efficiency features require supported clients and an appropriate RF design. In this situation, association does not demonstrate a working downstream Ethernet path.
C:Link negotiation does not guarantee continuous power at peak consumption. By contrast, association does not demonstrate a working downstream Ethernet path.
D:Optical wavelength and form-factor compatibility cannot be inferred from a common connector. It would not resolve the documented symptom; association does not demonstrate a working downstream Ethernet path.
Question 36
A campus design must separate 802.11 client roaming from the wired 802.3 uplink between access points and switches. What precaution is most important before the change is expanded?
- Restrict trunk allowed VLAN lists to approved segments and record exceptions
- Test the whole client path from authentication through DHCP and application access
- Retest the port with a known-good cable and capture its counters before replacing hardware
- Check the resulting trust boundary so an untrusted laptop cannot freely join the voice VLAN
Explanation
Correct Answer
B:End-to-end testing catches gaps between wireless and wired domains. A connected SSID can still fail because of an incorrect wired port profile.
Incorrect Answers
A:Broad default trunking can expose segments beyond their intended area. It would not resolve the documented symptom; end-to-end testing catches gaps between wireless and wired domains.
C:A controlled cable check separates a bad medium from incompatible interface settings. By contrast, end-to-end testing catches gaps between wireless and wired domains.
D:Voice tagging should not allow unintended access to a more trusted segment. The relevant technical distinction is that end-to-end testing catches gaps between wireless and wired domains.
Question 37
A new residence hall requires 48 wired endpoints and six APs on a distribution closet switch. Which configuration decision most directly resolves the situation?
- Confirm addressing, routing and uplink path design in both directions
- Size access ports, PoE capacity and uplink bandwidth against the documented device inventory
- Check the tagged management VLAN and DHCP relay or server scope for that subnet
- Use the organization's supported secure onboarding and configuration-management process
Explanation
Correct Answer
B:Physical deployment must account for client ports and powered APs. The acceptance test must reflect peak connectivity rather than a device count alone.
Incorrect Answers
A:Successful forward routing does not guarantee a valid return path. Here, however, physical deployment must account for client ports and powered APs.
C:Incorrect tagging can direct an AP into the wrong address pool. The relevant technical distinction is that physical deployment must account for client ports and powered APs.
D:Repeatable enrollment can apply the correct template after device identity is verified. By contrast, physical deployment must account for client ports and powered APs.
Question 38
A new residence hall requires 48 wired endpoints and six APs on a distribution closet switch. Which check most directly demonstrates the desired network behavior?
- Inspect client IPv6 address, default router and a routed IPv6 test session
- Compare installed port and PoE usage to the floor plan and measured uplink utilization
- Verify the IoT application's cloud session succeeds while office-subnet probes are blocked
- Confirm guest DHCP, external browsing and denied access to clinical subnets
Explanation
Correct Answer
B:The acceptance test must reflect peak connectivity rather than a device count alone. Physical deployment must account for client ports and powered APs.
Incorrect Answers
A:An IPv4 ping says nothing about native IPv6 operation. The relevant technical distinction is that the acceptance test must reflect peak connectivity rather than a device count alone.
C:Positive and negative tests establish the actual trust boundary. In this situation, the acceptance test must reflect peak connectivity rather than a device count alone.
D:The boundary is meaningful only when both paths are tested. Here, however, the acceptance test must reflect peak connectivity rather than a device count alone.
Question 39
A new residence hall requires 48 wired endpoints and six APs on a distribution closet switch. Which assumption would be most misleading when investigating this situation?
- Assume an operational IPv4 default gateway automatically supplies IPv6 routing
- Connect a second unmanaged Ethernet cable and assume redundant paths cannot form loops
- Assume enough free copper ports also means enough electrical power for all APs
- Treat a successful PoE negotiation as evidence the phone has the correct voice configuration
Explanation
Correct Answer
C:Port availability and PoE budget are separate design constraints. Physical deployment must account for client ports and powered APs.
Incorrect Answers
A:IP versions maintain separate addressing and neighbor mechanisms. In this situation, port availability and PoE budget are separate design constraints.
B:A loop can amplify broadcasts and destabilize the entire VLAN. Here, however, port availability and PoE budget are separate design constraints.
D:Power delivery is distinct from addressing and registration. It would not resolve the documented symptom; port availability and PoE budget are separate design constraints.
Question 40
A new residence hall requires 48 wired endpoints and six APs on a distribution closet switch. Which safeguard best reduces the deployment risk in this case?
- Label and test each drop and retain the as-built documentation
- Check guest DNS and captive-portal continuity during upstream failover
- Leave expansion headroom and identify redundant uplink paths before ordering switches
- Monitor exceptions and document device ownership and patch responsibility
Explanation
Correct Answer
C:The closet should not require a new chassis for the first modest growth. The acceptance test must reflect peak connectivity rather than a device count alone.
Incorrect Answers
A:Reliable records shorten later outage isolation. By contrast, the closet should not require a new chassis for the first modest growth.
B:The guest design should remain secure when a link changes. In this situation, the closet should not require a new chassis for the first modest growth.
D:Device inventory and access control should remain consistent after rollout. It would not resolve the documented symptom; the closet should not require a new chassis for the first modest growth.
HPE Network Campus Access Professional (HPE7-A01) Practice Tests