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Question 230
A distribution switch needs a shared logical uplink while a peer advertises a different LACP system identity. Which check most directly demonstrates the desired network behavior?
- Inspect LACP actor and partner identifiers and active collector/distributor flags
- Measure broadcast utilization and user performance before and after moving a pilot subnet
- Measure link-up to DHCP timing and ensure no bridge neighbor is attached
- Compare member interface state and MAC learning for affected versus working VLANs
Explanation
Correct Answer
A:Protocol details show why one member was excluded. A valid partner identity is required for expected bundle membership.
Incorrect Answers
B:Improved L2 containment should produce measurable results. By contrast, protocol details show why one member was excluded.
C:The optimization is safe only for genuine edge ports. It would not resolve the documented symptom; protocol details show why one member was excluded.
D:Focused comparison reveals the local forwarding defect. In this situation, protocol details show why one member was excluded.
Question 231
A distribution switch needs a shared logical uplink while a peer advertises a different LACP system identity. Which assumption would be most misleading when investigating this situation?
- Mark every user edge port trusted to prevent DHCP failures
- Assume two independent switches can always masquerade as one ordinary LAG peer
- Repeatedly re-enable the port while ignoring the arriving BPDUs
- Rewrite the dynamic routing configuration before checking the link medium
Explanation
Correct Answer
B:Without a supported MC-LAG design the partner identities may conflict. A valid partner identity is required for expected bundle membership.
Incorrect Answers
A:Trusting user ports defeats the rogue-server protection. It would not resolve the documented symptom; without a supported MC-LAG design the partner identities may conflict.
C:The loop risk remains until the topology or port role changes. The relevant technical distinction is that without a supported MC-LAG design the partner identities may conflict.
D:Routing cannot repair corrupted Ethernet frames. By contrast, without a supported MC-LAG design the partner identities may conflict.
Question 232
A distribution switch needs a shared logical uplink while a peer advertises a different LACP system identity. Which safeguard best reduces the deployment risk in this case?
- Stage subnet/DHCP changes alongside network segmentation
- Provide static binding handling for approved non-DHCP hosts
- Test one cable or peer failure before moving production traffic
- Check that no sensitive campus VLANs remain allowed on the handoff
Explanation
Correct Answer
C:A bundle that works only in normal conditions offers poor resilience. Protocol details show why one member was excluded.
Incorrect Answers
A:A routing redesign requires addressing and policy coordination. The relevant technical distinction is that a bundle that works only in normal conditions offers poor resilience.
B:Static devices can otherwise be blocked by binding-based inspection. Here, however, a bundle that works only in normal conditions offers poor resilience.
D:L3 handoffs should not unintentionally bridge client segments. By contrast, a bundle that works only in normal conditions offers poor resilience.
Question 233
A switch is configured with a native VLAN change and the access point management plane disappears. What is the most appropriate first technical change?
- Restrict the trunk allowed-VLAN list and correct access-port membership
- Align LACP active/passive modes and bundle membership on both endpoints
- Restore the intended untagged VLAN or explicit tagged management transport
- Map the supported interface identifiers to the intended patch-panel ports before applying configuration
Explanation
Correct Answer
C:Untagged management frames must land in the proper VLAN at both link ends. Packet tagging reveals which VLAN actually carries the traffic.
Incorrect Answers
A:VLAN propagation should follow approved segmentation rather than every available tag. Here, however, untagged management frames must land in the proper VLAN at both link ends.
B:Negotiation and common aggregation parameters are needed for a functional LAG. In this situation, untagged management frames must land in the proper VLAN at both link ends.
D:A valid port label on one platform may refer to a different port on another. The relevant technical distinction is that untagged management frames must land in the proper VLAN at both link ends.
Question 234
A switch is configured with a native VLAN change and the access point management plane disappears. Which observation would best verify that the intended behavior is working?
- Inspect active members, hashed session paths and tagged-frame counters under load
- Connect an authorized phone and PC, then a third test device, and observe violation behavior
- Capture management frames and compare VLAN status on switch and AP
- Inspect snooping bindings and confirm test rogue offers are blocked while valid leases work
Explanation
Correct Answer
C:Packet tagging reveals which VLAN actually carries the traffic. Untagged management frames must land in the proper VLAN at both link ends.
Incorrect Answers
A:Per-member evidence helps isolate a bad link or mismatch. In this situation, packet tagging reveals which VLAN actually carries the traffic.
B:Both acceptance and rejection establish the effective limit. Here, however, packet tagging reveals which VLAN actually carries the traffic.
D:The control must block the rogue source without breaking real DHCP. It would not resolve the documented symptom; packet tagging reveals which VLAN actually carries the traffic.
Question 235
A switch is configured with a native VLAN change and the access point management plane disappears. Which belief about the configuration should the team reject?
- Assume AP management remains accessible because wireless client VLANs still pass
- Enable IPv4 DHCP snooping and assume IPv6 RAs are controlled automatically
- Paste old port commands without reviewing platform port layout or supported syntax
- Raise every uplink speed without examining oversized broadcast-domain design
Explanation
Correct Answer
A:Control and data networks can have different tags. Untagged management frames must land in the proper VLAN at both link ends.
Incorrect Answers
B:IPv4 DHCP security does not validate IPv6 router advertisements. It would not resolve the documented symptom; control and data networks can have different tags.
C:Blind migrations can apply uplink settings to user interfaces. By contrast, control and data networks can have different tags.
D:More bandwidth alone does not correct excess flooding scope. In this situation, control and data networks can have different tags.
Question 236
A switch is configured with a native VLAN change and the access point management plane disappears. What should be included in the rollout plan to limit a foreseeable failure?
- Run a representative endpoint connectivity test and preserve rollback of the port profile
- Document known exceptions such as docks and replacement NICs
- Stage native-VLAN changes with console or out-of-band recovery ready
- Limit multicast to intended receivers and test one source leaving the network
Explanation
Correct Answer
C:A trunk error can lock out remote management. Packet tagging reveals which VLAN actually carries the traffic.
Incorrect Answers
A:One device can expose a mapping error before a whole row of ports moves. By contrast, a trunk error can lock out remote management.
B:Asset changes need a controlled authorization path. The relevant technical distinction is that a trunk error can lock out remote management.
D:Uncontrolled multicast can consume shared uplink capacity. It would not resolve the documented symptom; a trunk error can lock out remote management.
Question 237
A university deployment needs to support multicast classroom video across several routed VLANs. What should the network engineer do to address this requirement?
- Enable supported port-security or MAC-limit behavior consistent with a phone-plus-PC profile
- Plan the supported IGMP snooping and routed multicast control design
- Use validated DHCP snooping bindings with dynamic ARP inspection where supported
- Configure the trunk native VLAN and allowed tagged VLAN list consistently at both ends
Explanation
Correct Answer
B:Layer 2 listener awareness and Layer 3 multicast forwarding are different functions. Membership alone does not prove end-to-end multicast delivery.
Incorrect Answers
A:The limit should accommodate approved devices while blocking unplanned bridging. Here, however, layer 2 listener awareness and Layer 3 multicast forwarding are different functions.
C:A binding table can be used to reject forged address-to-MAC claims. The relevant technical distinction is that layer 2 listener awareness and Layer 3 multicast forwarding are different functions.
D:Proper tagging preserves the intended separation across the uplink. By contrast, layer 2 listener awareness and Layer 3 multicast forwarding are different functions.
Question 238
A university deployment needs to support multicast classroom video across several routed VLANs. What should the team inspect to confirm the result?
- Inspect snooping bindings and confirm test rogue offers are blocked while valid leases work
- Review partner system IDs, LACP member status and interface error counters
- Compare multiple distinct flows and member byte counters under load
- Check receiver joins, multicast routing state and per-VLAN forwarding
Explanation
Correct Answer
D:Membership alone does not prove end-to-end multicast delivery. Layer 2 listener awareness and Layer 3 multicast forwarding are different functions.
Incorrect Answers
A:The control must block the rogue source without breaking real DHCP. The relevant technical distinction is that membership alone does not prove end-to-end multicast delivery.
B:Protocol state distinguishes incompatible bundling from a physical fault. Here, however, membership alone does not prove end-to-end multicast delivery.
C:Flow diversity reveals whether traffic balancing is occurring. In this situation, membership alone does not prove end-to-end multicast delivery.
Question 239
A university deployment needs to support multicast classroom video across several routed VLANs. Which TWO actions together implement the required change and verify that it works? Choose TWO.
- Enable supported port-security or MAC-limit behavior consistent with a phone-plus-PC profile
- Plan the supported IGMP snooping and routed multicast control design
- Keep a verified VLAN provisioning checklist across access and aggregation devices
- Remove unused VLAN membership after validating dependencies and routing
- Check receiver joins, multicast routing state and per-VLAN forwarding
Explanation
Correct Answers
B:Layer 2 listener awareness and Layer 3 multicast forwarding are different functions. Membership alone does not prove end-to-end multicast delivery.
E:Membership alone does not prove end-to-end multicast delivery. Layer 2 listener awareness and Layer 3 multicast forwarding are different functions.
Incorrect Answers
A:The limit should accommodate approved devices while blocking unplanned bridging. It would not resolve the documented symptom; layer 2 listener awareness and Layer 3 multicast forwarding are different functions.
C:A single incomplete configuration step can isolate a floor. In this situation, uncontrolled multicast can consume shared uplink capacity.
D:Retiring dormant segments reduces accidental reachability and operational confusion. Here, however, layer 2 listener awareness and Layer 3 multicast forwarding are different functions.
Question 240
A university deployment needs to support multicast classroom video across several routed VLANs. What precaution is most important before the change is expanded?
- Size bundles for realistic traffic patterns and surviving member capacity
- Limit multicast to intended receivers and test one source leaving the network
- Record the faulted patch-port and confirm the cable path meets distance requirements
- Validate identical speed and native VLAN assumptions before putting the bundle into service
Explanation
Correct Answer
B:Uncontrolled multicast can consume shared uplink capacity. Membership alone does not prove end-to-end multicast delivery.
Incorrect Answers
A:Aggregate advertised rate does not guarantee every individual application's speed. By contrast, uncontrolled multicast can consume shared uplink capacity.
C:Recurring bad media should not be treated as a software mystery. In this situation, uncontrolled multicast can consume shared uplink capacity.
D:A LAG with mismatched port behavior can disrupt multiple VLANs. It would not resolve the documented symptom; uncontrolled multicast can consume shared uplink capacity.
HPE Network Campus Access Professional (HPE7-A01) Practice Tests