HP HPE7-A01 Practice Test 4
Question 30
A campus IP camera works on one port but loses infrared capabilities on another where the switch's total PoE allocation is exhausted. The review requires TWO complementary actions: one diagnostic check and one controlled configuration remedy. Select TWO actions that together meet those requirements.
- Inspect the authenticated session state and the tagged VLAN membership as separate switch functions.
- Review LLDP power requests, negotiated PoE class and available per-port and chassis power budget.
- Set compatible Ethernet negotiation or matched explicit link settings on the two connected interfaces according to support requirements.
- Deliver a supported PoE power class and sufficient switch budget for the endpoint's required feature set.
Explanation
Correct Answers
B:Review LLDP power requests, negotiated PoE class and available per-port and chassis power budget. IEEE 802.3 power negotiation and switch budgets determine whether a connected powered device can run its optional features despite a valid data link. This is the required diagnosis or controlled remedy; the other keyed action supplies the complementary role. The decision applies to the described 802.3 poe power negotiation and budgets situation.
D:Deliver a supported PoE power class and sufficient switch budget for the endpoint's required feature set. IEEE 802.3 power negotiation and switch budgets determine whether a connected powered device can run its optional features despite a valid data link. This is the required diagnosis or controlled remedy; the other keyed action supplies the complementary role. The decision applies to the described 802.3 poe power negotiation and budgets situation.
Incorrect Answers
A:Inspect the authenticated session state and the tagged VLAN membership as separate switch functions. This instead concerns 802.1q tagging versus 802.1x admission. 802.1Q carries VLAN information, while 802.1X controls access through authentication; satisfying one mechanism does not establish the other. It is not one of the requested paired diagnosis and configuration actions. The immediate problem concerns 802.3 poe power negotiation and budgets. The specific case describes: A campus IP camera works on one port but loses infrared capabilities on another where the switch's total PoE allocation is exhausted.
C:Set compatible Ethernet negotiation or matched explicit link settings on the two connected interfaces according to support requirements. This instead concerns 802.3 ethernet autonegotiation and duplex. 802.3 link parameters must be compatible across the connected interfaces, and physical link-up alone does not prove clean Ethernet transmission. It is not one of the requested paired diagnosis and configuration actions. The immediate problem concerns 802.3 poe power negotiation and budgets. The specific case describes: A campus IP camera works on one port but loses infrared capabilities on another where the switch's total PoE allocation is exhausted.
Question 31
A campus IP camera works on one port but loses infrared capabilities on another where the switch's total PoE allocation is exhausted. A deployment job reports success. Which observed result would actually validate the affected service?
- Verify the endpoint advertises the expected power mode, keeps its capabilities enabled and no longer shows power-denial events.
- Validate the intended VLAN tag on the trunk and a successful independent EAP authentication for the endpoint.
- Verify stable negotiated link mode and declining new physical-layer error counts during bidirectional traffic.
- Confirm both expected links are collecting and distributing and balanced flows pass without new interface errors.
Explanation
Correct Answer
A:Verify the endpoint advertises the expected power mode, keeps its capabilities enabled and no longer shows power-denial events. IEEE 802.3 power negotiation and switch budgets determine whether a connected powered device can run its optional features despite a valid data link. The result tests actual working behavior, not merely a saved configuration. The decision applies to the described 802.3 poe power negotiation and budgets situation.
Incorrect Answers
B:Validate the intended VLAN tag on the trunk and a successful independent EAP authentication for the endpoint. This instead concerns 802.1q tagging versus 802.1x admission. 802.1Q carries VLAN information, while 802.1X controls access through authentication; satisfying one mechanism does not establish the other. It would not establish that this function actually works. The immediate problem concerns 802.3 poe power negotiation and budgets. The specific case describes: A campus IP camera works on one port but loses infrared capabilities on another where the switch's total PoE allocation is exhausted.
C:Verify stable negotiated link mode and declining new physical-layer error counts during bidirectional traffic. This instead concerns 802.3 ethernet autonegotiation and duplex. 802.3 link parameters must be compatible across the connected interfaces, and physical link-up alone does not prove clean Ethernet transmission. It would not establish that this function actually works. The immediate problem concerns 802.3 poe power negotiation and budgets. The specific case describes: A campus IP camera works on one port but loses infrared capabilities on another where the switch's total PoE allocation is exhausted.
D:Confirm both expected links are collecting and distributing and balanced flows pass without new interface errors. This instead concerns lag uplink membership and hashing. LACP builds a logical link only from mutually compatible members; physical link-up does not guarantee aggregation eligibility. It would not establish that this function actually works. The immediate problem concerns 802.3 poe power negotiation and budgets. The specific case describes: A campus IP camera works on one port but loses infrared capabilities on another where the switch's total PoE allocation is exhausted.
Question 32
A campus IP camera works on one port but loses infrared capabilities on another where the switch's total PoE allocation is exhausted. If the revised setting disrupts users, which controlled rollback would be most relevant?
- Restore the previous access-control policy without changing known-good tagged VLAN assignments, then retest authorization.
- Restore compatible prior interface speed and duplex settings and verify the link errors stop before reinstating production traffic.
- Restore the former compatible LAG membership and disable the mismatched link until its configuration is corrected.
- Return the endpoint to a known-good adequate-power port and restore safe PoE allocation before retesting the new port.
Explanation
Correct Answer
D:Return the endpoint to a known-good adequate-power port and restore safe PoE allocation before retesting the new port. IEEE 802.3 power negotiation and switch budgets determine whether a connected powered device can run its optional features despite a valid data link. The focused rollback restores a known safe baseline before another change attempt. The decision applies to the described 802.3 poe power negotiation and budgets situation. For the incident in this item: A campus IP camera works on one port but loses infrared capabilities on another where the switch's total PoE allocation is exhausted.
Incorrect Answers
A:Restore the previous access-control policy without changing known-good tagged VLAN assignments, then retest authorization. This instead concerns 802.1q tagging versus 802.1x admission. 802.1Q carries VLAN information, while 802.1X controls access through authentication; satisfying one mechanism does not establish the other. It would not safely roll back the relevant failed change. The immediate problem concerns 802.3 poe power negotiation and budgets. The specific case describes: A campus IP camera works on one port but loses infrared capabilities on another where the switch's total PoE allocation is exhausted.
B:Restore compatible prior interface speed and duplex settings and verify the link errors stop before reinstating production traffic. This instead concerns 802.3 ethernet autonegotiation and duplex. 802.3 link parameters must be compatible across the connected interfaces, and physical link-up alone does not prove clean Ethernet transmission. It would not safely roll back the relevant failed change. The immediate problem concerns 802.3 poe power negotiation and budgets. The specific case describes: A campus IP camera works on one port but loses infrared capabilities on another where the switch's total PoE allocation is exhausted.
C:Restore the former compatible LAG membership and disable the mismatched link until its configuration is corrected. This instead concerns lag uplink membership and hashing. LACP builds a logical link only from mutually compatible members; physical link-up does not guarantee aggregation eligibility. It would not safely roll back the relevant failed change. The immediate problem concerns 802.3 poe power negotiation and budgets. The specific case describes: A campus IP camera works on one port but loses infrared capabilities on another where the switch's total PoE allocation is exhausted.
Question 33
A newly installed campus access point receives an IPv4 address but cannot reach its cloud management destination because DNS resolution fails. Which investigation would best isolate the immediate network dependency?
- Inspect client DHCP discovery, relay destination configuration and permitted server reply path at the VLAN gateway.
- Compare management interface or VRF assignments, reachability paths and source-access controls for administrative traffic.
- Inspect AP serial identity, selected site or group and effective inherited configuration before changing radios.
- Inspect DHCP-provided resolver information, DNS name resolution and reachability to the management service endpoint.
Explanation
Correct Answer
D:Inspect DHCP-provided resolver information, DNS name resolution and reachability to the management service endpoint. An AP can have valid local addressing while failing discovery if name resolution or reachability to its intended management service is broken. The evidence check isolates the relevant prerequisite before a disruptive change. The decision applies to the described ap dns and management reachability situation.
Incorrect Answers
A:Inspect client DHCP discovery, relay destination configuration and permitted server reply path at the VLAN gateway. This instead concerns dhcp scope and relay on routed vlans. A DHCP broadcast does not normally cross a routed boundary without relay; correct scope and return reachability are both necessary. It does not isolate the cause of the stated incident. The immediate problem concerns ap dns and management reachability.
B:Compare management interface or VRF assignments, reachability paths and source-access controls for administrative traffic. This instead concerns management vlan access isolation. Data-plane connectivity and administrative reachability serve different trust boundaries; a dedicated management design restricts who can configure devices. It does not isolate the cause of the stated incident. The immediate problem concerns ap dns and management reachability.
C:Inspect AP serial identity, selected site or group and effective inherited configuration before changing radios. This instead concerns access point assignment to site and group. Central device enrollment and effective configuration group are separate steps; wrong scope can apply valid settings to the wrong site. It does not isolate the cause of the stated incident. The immediate problem concerns ap dns and management reachability.
Question 34
A newly installed campus access point receives an IPv4 address but cannot reach its cloud management destination because DNS resolution fails. Which specific corrective design step best meets the stated campus requirement?
- Configure the appropriate DHCP relay on the routed interface and ensure the server scope and return path match the client subnet.
- Place management traffic in the approved dedicated interface or VRF and constrain permitted administrator sources.
- Set valid site DNS resolvers and the supported AP management destination in the existing provisioned configuration.
- Assign the AP to the correct device group and apply the intended approved WLAN configuration.
Explanation
Correct Answer
C:Set valid site DNS resolvers and the supported AP management destination in the existing provisioned configuration. An AP can have valid local addressing while failing discovery if name resolution or reachability to its intended management service is broken. The proposed configuration targets the stated dependency without broadening unrelated access. The decision applies to the described ap dns and management reachability situation.
Incorrect Answers
A:Configure the appropriate DHCP relay on the routed interface and ensure the server scope and return path match the client subnet. This instead concerns dhcp scope and relay on routed vlans. A DHCP broadcast does not normally cross a routed boundary without relay; correct scope and return reachability are both necessary. It would not implement the specifically required change. The immediate problem concerns ap dns and management reachability.
B:Place management traffic in the approved dedicated interface or VRF and constrain permitted administrator sources. This instead concerns management vlan access isolation. Data-plane connectivity and administrative reachability serve different trust boundaries; a dedicated management design restricts who can configure devices. It would not implement the specifically required change. The immediate problem concerns ap dns and management reachability.
D:Assign the AP to the correct device group and apply the intended approved WLAN configuration. This instead concerns access point assignment to site and group. Central device enrollment and effective configuration group are separate steps; wrong scope can apply valid settings to the wrong site. It would not implement the specifically required change. The immediate problem concerns ap dns and management reachability.
Question 35
A newly installed campus access point receives an IPv4 address but cannot reach its cloud management destination because DNS resolution fails. Following a targeted change, which acceptance test would most directly demonstrate success?
- Capture DHCP discover, relay, offer and acknowledgment packets to confirm clients receive appropriate leases.
- Verify the AP resolves the expected control-plane hostname and appears online in its assigned management inventory.
- Verify approved NOC sessions succeed and blocked campus-client sources cannot reach management services.
- Verify the AP's effective settings, advertised SSIDs and client association to the target site match the design.
Explanation
Correct Answer
B:Verify the AP resolves the expected control-plane hostname and appears online in its assigned management inventory. An AP can have valid local addressing while failing discovery if name resolution or reachability to its intended management service is broken. The result tests actual working behavior, not merely a saved configuration. The decision applies to the described ap dns and management reachability situation.
Incorrect Answers
A:Capture DHCP discover, relay, offer and acknowledgment packets to confirm clients receive appropriate leases. This instead concerns dhcp scope and relay on routed vlans. A DHCP broadcast does not normally cross a routed boundary without relay; correct scope and return reachability are both necessary. It would not establish that this function actually works. The immediate problem concerns ap dns and management reachability.
C:Verify approved NOC sessions succeed and blocked campus-client sources cannot reach management services. This instead concerns management vlan access isolation. Data-plane connectivity and administrative reachability serve different trust boundaries; a dedicated management design restricts who can configure devices. It would not establish that this function actually works. The immediate problem concerns ap dns and management reachability.
D:Verify the AP's effective settings, advertised SSIDs and client association to the target site match the design. This instead concerns access point assignment to site and group. Central device enrollment and effective configuration group are separate steps; wrong scope can apply valid settings to the wrong site. It would not establish that this function actually works. The immediate problem concerns ap dns and management reachability.
Question 36
A newly installed campus access point receives an IPv4 address but cannot reach its cloud management destination because DNS resolution fails. The change fails acceptance. What is the safest targeted restoration action?
- Restore the last verified DNS settings for the site and confirm AP control connectivity before retrying the change.
- Reinstate the previous relay configuration and server route to restore leases while the new path is investigated.
- Reapply the last controlled management ACL and known-good out-of-band path to preserve access while repairing isolation.
- Move the AP back to its known-good group and restore last published site configuration if the reassignment fails.
Explanation
Correct Answer
A:Restore the last verified DNS settings for the site and confirm AP control connectivity before retrying the change. An AP can have valid local addressing while failing discovery if name resolution or reachability to its intended management service is broken. The focused rollback restores a known safe baseline before another change attempt. The decision applies to the described ap dns and management reachability situation.
Incorrect Answers
B:Reinstate the previous relay configuration and server route to restore leases while the new path is investigated. This instead concerns dhcp scope and relay on routed vlans. A DHCP broadcast does not normally cross a routed boundary without relay; correct scope and return reachability are both necessary. It would not safely roll back the relevant failed change. The immediate problem concerns ap dns and management reachability.
C:Reapply the last controlled management ACL and known-good out-of-band path to preserve access while repairing isolation. This instead concerns management vlan access isolation. Data-plane connectivity and administrative reachability serve different trust boundaries; a dedicated management design restricts who can configure devices. It would not safely roll back the relevant failed change. The immediate problem concerns ap dns and management reachability.
D:Move the AP back to its known-good group and restore last published site configuration if the reassignment fails. This instead concerns access point assignment to site and group. Central device enrollment and effective configuration group are separate steps; wrong scope can apply valid settings to the wrong site. It would not safely roll back the relevant failed change. The immediate problem concerns ap dns and management reachability.
Question 37
A remote-site AP has a working DHCP lease and local ping yet cannot establish its intended management control session after DNS servers were changed. The review requires TWO complementary actions: one diagnostic check and one controlled configuration remedy. Select TWO actions that together meet those requirements.
- Review client DHCP discovery, relay destination configuration and permitted server reply path at the VLAN gateway.
- Review DHCP-provided resolver information, DNS name resolution and reachability to the management service endpoint.
- Put management traffic in the approved dedicated interface or VRF and constrain permitted administrator sources.
- Apply valid site DNS resolvers and the supported AP management destination in the existing provisioned configuration.
Explanation
Correct Answers
B:Review DHCP-provided resolver information, DNS name resolution and reachability to the management service endpoint. An AP can have valid local addressing while failing discovery if name resolution or reachability to its intended management service is broken. This is the required diagnosis or controlled remedy; the other keyed action supplies the complementary role. The decision applies to the described ap dns and management reachability situation.
D:Apply valid site DNS resolvers and the supported AP management destination in the existing provisioned configuration. An AP can have valid local addressing while failing discovery if name resolution or reachability to its intended management service is broken. This is the required diagnosis or controlled remedy; the other keyed action supplies the complementary role. The decision applies to the described ap dns and management reachability situation.
Incorrect Answers
A:Review client DHCP discovery, relay destination configuration and permitted server reply path at the VLAN gateway. This instead concerns dhcp scope and relay on routed vlans. A DHCP broadcast does not normally cross a routed boundary without relay; correct scope and return reachability are both necessary. It is not one of the requested paired diagnosis and configuration actions. The immediate problem concerns ap dns and management reachability.
C:Put management traffic in the approved dedicated interface or VRF and constrain permitted administrator sources. This instead concerns management vlan access isolation. Data-plane connectivity and administrative reachability serve different trust boundaries; a dedicated management design restricts who can configure devices. It is not one of the requested paired diagnosis and configuration actions. The immediate problem concerns ap dns and management reachability.
Question 38
A remote-site AP has a working DHCP lease and local ping yet cannot establish its intended management control session after DNS servers were changed. After the root cause is confirmed, which narrowly scoped configuration action should be selected?
- Set up the appropriate DHCP relay on the routed interface and ensure the server scope and return path match the client subnet.
- Put management traffic in the approved dedicated interface or VRF and constrain permitted administrator sources.
- Apply valid site DNS resolvers and the supported AP management destination in the existing provisioned configuration.
- Map the AP to the correct device group and apply the intended approved WLAN configuration.
Explanation
Correct Answer
C:Apply valid site DNS resolvers and the supported AP management destination in the existing provisioned configuration. An AP can have valid local addressing while failing discovery if name resolution or reachability to its intended management service is broken. The proposed configuration targets the stated dependency without broadening unrelated access. The decision applies to the described ap dns and management reachability situation.
Incorrect Answers
A:Set up the appropriate DHCP relay on the routed interface and ensure the server scope and return path match the client subnet. This instead concerns dhcp scope and relay on routed vlans. A DHCP broadcast does not normally cross a routed boundary without relay; correct scope and return reachability are both necessary. It would not implement the specifically required change. The immediate problem concerns ap dns and management reachability.
B:Put management traffic in the approved dedicated interface or VRF and constrain permitted administrator sources. This instead concerns management vlan access isolation. Data-plane connectivity and administrative reachability serve different trust boundaries; a dedicated management design restricts who can configure devices. It would not implement the specifically required change. The immediate problem concerns ap dns and management reachability.
D:Map the AP to the correct device group and apply the intended approved WLAN configuration. This instead concerns access point assignment to site and group. Central device enrollment and effective configuration group are separate steps; wrong scope can apply valid settings to the wrong site. It would not implement the specifically required change. The immediate problem concerns ap dns and management reachability.
Question 39
A remote-site AP has a working DHCP lease and local ping yet cannot establish its intended management control session after DNS servers were changed. A deployment job reports success. Which observed result would actually validate the affected service?
- Collect DHCP discover, relay, offer and acknowledgment packets to confirm clients receive appropriate leases.
- Confirm the AP resolves the expected control-plane hostname and appears online in its assigned management inventory.
- Confirm approved NOC sessions succeed and blocked campus-client sources cannot reach management services.
- Confirm the AP's effective settings, advertised SSIDs and client association to the target site match the design.
Explanation
Correct Answer
B:Confirm the AP resolves the expected control-plane hostname and appears online in its assigned management inventory. An AP can have valid local addressing while failing discovery if name resolution or reachability to its intended management service is broken. The result tests actual working behavior, not merely a saved configuration. The decision applies to the described ap dns and management reachability situation.
Incorrect Answers
A:Collect DHCP discover, relay, offer and acknowledgment packets to confirm clients receive appropriate leases. This instead concerns dhcp scope and relay on routed vlans. A DHCP broadcast does not normally cross a routed boundary without relay; correct scope and return reachability are both necessary. It would not establish that this function actually works. The immediate problem concerns ap dns and management reachability.
C:Confirm approved NOC sessions succeed and blocked campus-client sources cannot reach management services. This instead concerns management vlan access isolation. Data-plane connectivity and administrative reachability serve different trust boundaries; a dedicated management design restricts who can configure devices. It would not establish that this function actually works. The immediate problem concerns ap dns and management reachability.
D:Confirm the AP's effective settings, advertised SSIDs and client association to the target site match the design. This instead concerns access point assignment to site and group. Central device enrollment and effective configuration group are separate steps; wrong scope can apply valid settings to the wrong site. It would not establish that this function actually works. The immediate problem concerns ap dns and management reachability.
Question 40
A remote-site AP has a working DHCP lease and local ping yet cannot establish its intended management control session after DNS servers were changed. If the revised setting disrupts users, which controlled rollback would be most relevant?
- Reinstate the last verified DNS settings for the site and confirm AP control connectivity before retrying the change.
- Restore the previous relay configuration and server route to restore leases while the new path is investigated.
- Reapply the last controlled management ACL and known-good out-of-band path to preserve access while repairing isolation for the affected campus deployment.
- Transfer the AP back to its known-good group and restore last published site configuration if the reassignment fails.
Explanation
Correct Answer
A:Reinstate the last verified DNS settings for the site and confirm AP control connectivity before retrying the change. An AP can have valid local addressing while failing discovery if name resolution or reachability to its intended management service is broken. The focused rollback restores a known safe baseline before another change attempt. The decision applies to the described ap dns and management reachability situation.
Incorrect Answers
B:Restore the previous relay configuration and server route to restore leases while the new path is investigated. This instead concerns dhcp scope and relay on routed vlans. A DHCP broadcast does not normally cross a routed boundary without relay; correct scope and return reachability are both necessary. It would not safely roll back the relevant failed change. The immediate problem concerns ap dns and management reachability.
C:Reapply the last controlled management ACL and known-good out-of-band path to preserve access while repairing isolation for the affected campus deployment. This instead concerns management vlan access isolation. Data-plane connectivity and administrative reachability serve different trust boundaries; a dedicated management design restricts who can configure devices. It would not safely roll back the relevant failed change. The immediate problem concerns ap dns and management reachability.
D:Transfer the AP back to its known-good group and restore last published site configuration if the reassignment fails. This instead concerns access point assignment to site and group. Central device enrollment and effective configuration group are separate steps; wrong scope can apply valid settings to the wrong site. It would not safely roll back the relevant failed change. The immediate problem concerns ap dns and management reachability.
