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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?
- Benchmark a representative workload before and after the upgrade
- Maintain voice service rollback and test emergency-call requirements where applicable
- Keep a known-good port profile and test bootstrap after each closet change
- 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?
- Deploy an isolated guest VLAN or role with approved internet-only policy
- Configure the intended voice VLAN, DHCP options and routed controller path
- Place management interfaces in an approved management VLAN or routing instance with restrictive access policy
- 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?
- Inspect LACP and spanning-tree state before placing the new link in production
- Inspect trunk allowed VLANs, client ARP and a test default-gateway ping
- Confirm assigned voice subnet, DHCP options, and a successful controller registration
- 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?
- Assume matching switch hostnames automatically restore production VLAN configurations
- Change the AP's wireless transmit power to force a better management address
- Treat a successful PoE negotiation as evidence the phone has the correct voice configuration
- 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?
- Pilot profile assignment on a few moved devices and review negative access tests
- Document explicit failover routes and approved path symmetry exceptions
- Benchmark a representative workload before and after the upgrade
- 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?
- Place management interfaces in an approved management VLAN or routing instance with restrictive access policy
- Select a supported aggregation or loop-prevention design based on the actual topology
- Create a dedicated IoT segment with a narrow outbound access policy
- 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?
- Verify the IoT application's cloud session succeeds while office-subnet probes are blocked
- Check device registration, expected software level and effective port configuration
- Capture DHCP discovery and inspect the server's selected scope and resulting lease
- 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?
- Assume a floor-plan marker always reflects the AP's connected switch port
- Place IoT devices in the default office VLAN because both classes need DNS
- Connect a second unmanaged Ethernet cable and assume redundant paths cannot form loops
- 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?
- Monitor exceptions and document device ownership and patch responsibility
- Leave expansion headroom and identify redundant uplink paths before ordering switches
- Keep a switch-port migration matrix and run one test client before moving the entire floor
- 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?
- Design the approved VLAN-to-SVI gateway placement and required routed uplinks
- Deploy an isolated guest VLAN or role with approved internet-only policy
- Select a supported aggregation or loop-prevention design based on the actual topology
- 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.
- 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.
HPE Network Campus Access Professional (HPE7-A01) Practice Tests