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Question 550
A door controller on port 1/1/3 receives staff VLAN DHCP rather than the required IoT network. What should be changed?
- Align native or untagged VLAN on peers
- Correct access VLAN on intended edge port
- Add missing allowed VLAN to transit trunk
- Verify postchange MAC and connectivity
Explanation
Correct Answer
B:Correct the assigned access VLAN while retaining access control. Move the endpoint into its approved VLAN while preserving other port security settings.
Incorrect Answers
A:Consistent untagged handling prevents traffic from entering the wrong broadcast domain. But this does not address the case requirement to restore proper endpoint VLAN membership.
C:Permit only the intended VLAN tag across required interswitch links. But this does not address the case requirement to restore proper endpoint VLAN membership.
D:Test intended VLAN paths and deny unwanted cross-segment access after correction. But this does not address the case requirement to restore proper endpoint VLAN membership.
Question 551
Voice VLAN 210 is absent from one distribution trunk, while access tagging is correct. What is the minimum supported fix?
- Verify postchange MAC and connectivity
- Add missing allowed VLAN to transit trunk
- Correct access VLAN on intended edge port
- Create missing intermediate VLAN instance
Explanation
Correct Answer
B:Allow VLAN 210 only on the necessary transit trunk. Permit only the intended VLAN tag across required interswitch links.
Incorrect Answers
A:Test intended VLAN paths and deny unwanted cross-segment access after correction. But this does not address the case requirement to restore tagged voice reachability.
C:Move the endpoint into its approved VLAN while preserving other port security settings. But this does not address the case requirement to restore tagged voice reachability.
D:Ensure the required VLAN exists and is active on each transit switch. But this does not address the case requirement to restore tagged voice reachability.
Question 552
Two trunk peers use different untagged VLAN settings and clients occasionally land in the wrong subnet. What remediation fits?
- Correct access VLAN on intended edge port
- Align native or untagged VLAN on peers
- Create missing intermediate VLAN instance
- Add missing allowed VLAN to transit trunk
Explanation
Correct Answer
B:Reconcile the native VLAN settings on both ends. Consistent untagged handling prevents traffic from entering the wrong broadcast domain.
Incorrect Answers
A:Move the endpoint into its approved VLAN while preserving other port security settings. But this does not address the case requirement to ensure consistent untagged traffic mapping.
C:Ensure the required VLAN exists and is active on each transit switch. But this does not address the case requirement to ensure consistent untagged traffic mapping.
D:Permit only the intended VLAN tag across required interswitch links. But this does not address the case requirement to ensure consistent untagged traffic mapping.
Question 553
VLAN 75 is permitted on trunks but not defined on a middle switch, isolating one building. What should be configured?
- Correct access VLAN on intended edge port
- Create missing intermediate VLAN instance
- Add missing allowed VLAN to transit trunk
- Verify postchange MAC and connectivity
Explanation
Correct Answer
B:Create or activate the intended intermediate VLAN. Ensure the required VLAN exists and is active on each transit switch.
Incorrect Answers
A:Move the endpoint into its approved VLAN while preserving other port security settings. But this does not address the case requirement to maintain the required VLAN across every hop.
C:Permit only the intended VLAN tag across required interswitch links. But this does not address the case requirement to maintain the required VLAN across every hop.
D:Test intended VLAN paths and deny unwanted cross-segment access after correction. But this does not address the case requirement to maintain the required VLAN across every hop.
Question 554
The VLAN 60 SVI uses 10.60.0.1/16 though clients were designed for 10.60.10.0/24. What must be corrected?
- Align native or untagged VLAN on peers
- Add missing allowed VLAN to transit trunk
- Restore SVI gateway prefix
- Create missing intermediate VLAN instance
Explanation
Correct Answer
C:Use the approved gateway subnet and mask. Align the routed VLAN interface with the approved client IP subnet.
Incorrect Answers
A:Consistent untagged handling prevents traffic from entering the wrong broadcast domain. But this does not address the case requirement to restore proper routed VLAN addressing.
B:Permit only the intended VLAN tag across required interswitch links. But this does not address the case requirement to restore proper routed VLAN addressing.
D:Ensure the required VLAN exists and is active on each transit switch. But this does not address the case requirement to restore proper routed VLAN addressing.
Question 555
After adding a missing VLAN, an engineer must confirm clients reach only approved services. What testing is essential?
- Correct access VLAN on intended edge port
- Restore SVI gateway prefix
- Align native or untagged VLAN on peers
- Verify postchange MAC and connectivity
Explanation
Correct Answer
D:Validate MAC learning, DHCP, routing and security effects. Test intended VLAN paths and deny unwanted cross-segment access after correction.
Incorrect Answers
A:Move the endpoint into its approved VLAN while preserving other port security settings. But this does not address the case requirement to prove connectivity without violating segmentation.
B:Align the routed VLAN interface with the approved client IP subnet. But this does not address the case requirement to prove connectivity without violating segmentation.
C:Consistent untagged handling prevents traffic from entering the wrong broadcast domain. But this does not address the case requirement to prove connectivity without violating segmentation.
Question 556
A tagged client VLAN is lost only at one 802.1Q link. What scoped change is preferable to allowing every VLAN?
- Correct access VLAN on intended edge port
- Restore SVI gateway prefix
- Add missing allowed VLAN to transit trunk
- Verify postchange MAC and connectivity
Explanation
Correct Answer
C:Permit the exact missing VLAN tag on the responsible trunk. Permit only the intended VLAN tag across required interswitch links.
Incorrect Answers
A:Move the endpoint into its approved VLAN while preserving other port security settings. But this does not address the case requirement to restore service without unnecessary VLAN exposure.
B:Align the routed VLAN interface with the approved client IP subnet. But this does not address the case requirement to restore service without unnecessary VLAN exposure.
D:Test intended VLAN paths and deny unwanted cross-segment access after correction. But this does not address the case requirement to restore service without unnecessary VLAN exposure.
Question 557
A peer sends an untagged management network as native VLAN 99 but the receiver assumes VLAN 1. What change should be made?
- Create missing intermediate VLAN instance
- Restore SVI gateway prefix
- Align native or untagged VLAN on peers
- Correct access VLAN on intended edge port
Explanation
Correct Answer
C:Native/untagged VLAN configuration must agree. Consistent untagged handling prevents traffic from entering the wrong broadcast domain.
Incorrect Answers
A:Ensure the required VLAN exists and is active on each transit switch. But this does not address the case requirement to eliminate untagged VLAN mismatch.
B:Align the routed VLAN interface with the approved client IP subnet. But this does not address the case requirement to eliminate untagged VLAN mismatch.
D:Move the endpoint into its approved VLAN while preserving other port security settings. But this does not address the case requirement to eliminate untagged VLAN mismatch.
Question 558
A corrected trunk now carries guest and payroll VLANs; before sign-off what must be checked?
- Add missing allowed VLAN to transit trunk
- Correct access VLAN on intended edge port
- Verify postchange MAC and connectivity
- Align native or untagged VLAN on peers
Explanation
Correct Answer
C:Verify both reachability and intended isolation policy. Test intended VLAN paths and deny unwanted cross-segment access after correction.
Incorrect Answers
A:Permit only the intended VLAN tag across required interswitch links. But this does not address the case requirement to avoid treating restored connectivity as proof of security.
B:Move the endpoint into its approved VLAN while preserving other port security settings. But this does not address the case requirement to avoid treating restored connectivity as proof of security.
D:Consistent untagged handling prevents traffic from entering the wrong broadcast domain. But this does not address the case requirement to avoid treating restored connectivity as proof of security.
Question 559
Two core OSPF peers stopped after one area ID changed unexpectedly. What should be corrected first?
- Align SVI or interface addressing
- Repair missing static or default route
- Restore interface or next-hop reachability
- Correct OSPF peer area or authentication
Explanation
Correct Answer
D:Restore matching OSPF area settings on the peering link. Align adjacency prerequisites across the exact point-to-point or broadcast neighbor link.
Incorrect Answers
A:Correct inconsistent IP/mask values that defeat directly connected routes. But this does not address the case requirement to reestablish the intended adjacency.
B:Add an authorized reachable next hop only for required destination prefixes. But this does not address the case requirement to reestablish the intended adjacency.
C:A route cannot forward successfully if the selected next hop is unavailable. But this does not address the case requirement to reestablish the intended adjacency.
Question 560
A branch reaches local subnets but has no default route for Internet-bound packets. What routing change fits?
- Correct OSPF peer area or authentication
- Repair missing static or default route
- Align SVI or interface addressing
- Restore interface or next-hop reachability
Explanation
Correct Answer
B:Install the approved reachable default next hop. Add an authorized reachable next hop only for required destination prefixes.
Incorrect Answers
A:Align adjacency prerequisites across the exact point-to-point or broadcast neighbor link. But this does not address the case requirement to forward destinations without a more-specific route.
C:Correct inconsistent IP/mask values that defeat directly connected routes. But this does not address the case requirement to forward destinations without a more-specific route.
D:A route cannot forward successfully if the selected next hop is unavailable. But this does not address the case requirement to forward destinations without a more-specific route.
HPE Network Switching Professional (HPE7-A08) Practice Tests