Palo Alto Networks NGFW-Engineer Practice Test 33
Question 320
A network operations team has passed initial acceptance for ha split-brain recovery. The earlier condition was: Two HA nodes lose control-plane contact while each has live data links to the protected networks. Which continuing signal should it monitor while working to limit simultaneous-forwarding risk under control-link failure?
- Monitor HA link alarms, synchronization state and split-brain indicators.
- Monitor HA1 reachability, backup heartbeat status and dual-active alerts.
- Alert on role flaps and unexpected simultaneous-active conditions.
- Track monitored target loss and path-monitor-induced state changes.
Explanation
Correct Answer
B:Monitor HA1 reachability, backup heartbeat status and dual-active alerts. Loss of peer control connectivity needs deliberate design to reduce dual-active failures. Ongoing evidence on the same failure path can detect drift after an initially successful deployment.
Incorrect Answers
A:Monitor HA link alarms, synchronization state and split-brain indicators. This signal follows ha control and data synchronization rather than the documented ha split-brain recovery failure. It might stay normal while the required control regresses.
C:Alert on role flaps and unexpected simultaneous-active conditions. This signal follows active/passive ha role placement rather than the documented ha split-brain recovery failure. It might stay normal while the required control regresses.
D:Track monitored target loss and path-monitor-induced state changes. This signal follows ha path monitoring rather than the documented ha split-brain recovery failure. It might stay normal while the required control regresses.
Question 321
Following remediation, an operator must detect regression rather than repeat one-time testing. A migration introduces logical routers, but a new uplink is still attached to an old forwarding context. Which monitoring activity is most relevant to the requirement to place each routed interface into the intended Advanced Routing Engine logical router?
- Monitor changes in logical-router interface ownership and route availability.
- Track static-route changes and missing supplier prefix reachability.
- Alert on BGP neighbor state changes and rejected route announcements.
- Alert when new redistributed prefixes exceed the authorized list.
Explanation
Correct Answer
A:Monitor changes in logical-router interface ownership and route availability. An IP interface must be associated with the routing instance that makes forwarding decisions. Ongoing evidence on the same failure path can detect drift after an initially successful deployment.
Incorrect Answers
B:Track static-route changes and missing supplier prefix reachability. This signal follows static route next hop rather than the documented advanced routing engine logical routers failure. It might stay normal while the required control regresses.
C:Alert on BGP neighbor state changes and rejected route announcements. This signal follows bgp peer establishment rather than the documented advanced routing engine logical routers failure. It might stay normal while the required control regresses.
D:Alert when new redistributed prefixes exceed the authorized list. This signal follows route redistribution control rather than the documented advanced routing engine logical routers failure. It might stay normal while the required control regresses.
Question 322
The affected PAN-OS capability is back in service after this problem: A firewall has a connected path to its ISP but no route toward a remote supplier prefix. What should operations track so the goal to install a precise next hop for the supplier destination remains satisfied?
- Alert on BGP neighbor state changes and rejected route announcements.
- Watch OSPF neighbor resets and unexpected area mismatch messages.
- Monitor repeated route-monitor failure events and route preference churn.
- Track static-route changes and missing supplier prefix reachability.
Explanation
Correct Answer
D:Track static-route changes and missing supplier prefix reachability. A specific static destination route must identify how packets leave the router. Ongoing evidence on the same failure path can detect drift after an initially successful deployment.
Incorrect Answers
A:Alert on BGP neighbor state changes and rejected route announcements. This signal follows bgp peer establishment rather than the documented static route next hop failure. It might stay normal while the required control regresses.
B:Watch OSPF neighbor resets and unexpected area mismatch messages. This signal follows ospf area adjacency rather than the documented static route next hop failure. It might stay normal while the required control regresses.
C:Monitor repeated route-monitor failure events and route preference churn. This signal follows monitored default route rather than the documented static route next hop failure. It might stay normal while the required control regresses.
Question 323
A change fixed the reported issue: A new transit peer never reaches established BGP state despite a functioning physical circuit. Which recurring evidence best detects a return of the failure while the team continues to exchange routing information with the authorized external neighbor?
- Watch OSPF neighbor resets and unexpected area mismatch messages.
- Alert when new redistributed prefixes exceed the authorized list.
- Alert on BGP neighbor state changes and rejected route announcements.
- Track route member loss and asymmetric-session drop counters.
Explanation
Correct Answer
C:Alert on BGP neighbor state changes and rejected route announcements. A BGP adjacency requires compatible peer parameters and transport reachability before routes can exchange. Ongoing evidence on the same failure path can detect drift after an initially successful deployment.
Incorrect Answers
A:Watch OSPF neighbor resets and unexpected area mismatch messages. This signal follows ospf area adjacency rather than the documented bgp peer establishment failure. It might stay normal while the required control regresses.
B:Alert when new redistributed prefixes exceed the authorized list. This signal follows route redistribution control rather than the documented bgp peer establishment failure. It might stay normal while the required control regresses.
D:Track route member loss and asymmetric-session drop counters. This signal follows equal-cost forwarding design rather than the documented bgp peer establishment failure. It might stay normal while the required control regresses.
Question 324
A network operations team has passed initial acceptance for ospf area adjacency. The earlier condition was: A campus OSPF neighbor is stuck below full adjacency after a router migration. Which continuing signal should it monitor while working to form a stable adjacency in the intended area?
- Alert when new redistributed prefixes exceed the authorized list.
- Watch OSPF neighbor resets and unexpected area mismatch messages.
- Monitor repeated route-monitor failure events and route preference churn.
- Watch changes to overlapping routes and unexpected fallback to the default route.
Explanation
Correct Answer
B:Watch OSPF neighbor resets and unexpected area mismatch messages. OSPF peers must agree on key adjacency parameters to share link-state information. Ongoing evidence on the same failure path can detect drift after an initially successful deployment.
Incorrect Answers
A:Alert when new redistributed prefixes exceed the authorized list. This signal follows route redistribution control rather than the documented ospf area adjacency failure. It might stay normal while the required control regresses.
C:Monitor repeated route-monitor failure events and route preference churn. This signal follows monitored default route rather than the documented ospf area adjacency failure. It might stay normal while the required control regresses.
D:Watch changes to overlapping routes and unexpected fallback to the default route. This signal follows route selection and specificity rather than the documented ospf area adjacency failure. It might stay normal while the required control regresses.
Question 325
Following remediation, an operator must detect regression rather than repeat one-time testing. A branch advertises too many internal prefixes after adding redistribution from a static table. Which monitoring activity is most relevant to the requirement to export only approved network routes to the neighboring protocol domain?
- Alert when new redistributed prefixes exceed the authorized list.
- Monitor repeated route-monitor failure events and route preference churn.
- Track route member loss and asymmetric-session drop counters.
- Monitor changes in logical-router interface ownership and route availability.
Explanation
Correct Answer
A:Alert when new redistributed prefixes exceed the authorized list. Redistribution policy should limit route propagation rather than import an entire source table. Ongoing evidence on the same failure path can detect drift after an initially successful deployment.
Incorrect Answers
B:Monitor repeated route-monitor failure events and route preference churn. This signal follows monitored default route rather than the documented route redistribution control failure. It might stay normal while the required control regresses.
C:Track route member loss and asymmetric-session drop counters. This signal follows equal-cost forwarding design rather than the documented route redistribution control failure. It might stay normal while the required control regresses.
D:Monitor changes in logical-router interface ownership and route availability. This signal follows advanced routing engine logical routers rather than the documented route redistribution control failure. It might stay normal while the required control regresses.
Question 326
The affected PAN-OS capability is back in service after this problem: A static ISP default route stays installed even after the upstream connection beyond its first hop fails. What should operations track so the goal to withdraw an unusable primary route and use a valid backup path remains satisfied?
- Track route member loss and asymmetric-session drop counters.
- Watch changes to overlapping routes and unexpected fallback to the default route.
- Track static-route changes and missing supplier prefix reachability.
- Monitor repeated route-monitor failure events and route preference churn.
Explanation
Correct Answer
D:Monitor repeated route-monitor failure events and route preference churn. Route monitoring can detect remote unreachability despite an operational local interface. Ongoing evidence on the same failure path can detect drift after an initially successful deployment.
Incorrect Answers
A:Track route member loss and asymmetric-session drop counters. This signal follows equal-cost forwarding design rather than the documented monitored default route failure. It might stay normal while the required control regresses.
B:Watch changes to overlapping routes and unexpected fallback to the default route. This signal follows route selection and specificity rather than the documented monitored default route failure. It might stay normal while the required control regresses.
C:Track static-route changes and missing supplier prefix reachability. This signal follows static route next hop rather than the documented monitored default route failure. It might stay normal while the required control regresses.
Question 327
A change fixed the reported issue: A data center introduces two equal-cost WAN paths but the traffic distribution differs from the routing team's expectation. Which recurring evidence best detects a return of the failure while the team continues to use supported multipath forwarding without breaking stateful inspection?
- Watch changes to overlapping routes and unexpected fallback to the default route.
- Monitor changes in logical-router interface ownership and route availability.
- Track route member loss and asymmetric-session drop counters.
- Alert on BGP neighbor state changes and rejected route announcements.
Explanation
Correct Answer
C:Track route member loss and asymmetric-session drop counters. ECMP distributes selected flows over eligible next hops and needs a compatible bidirectional design. Ongoing evidence on the same failure path can detect drift after an initially successful deployment.
Incorrect Answers
A:Watch changes to overlapping routes and unexpected fallback to the default route. This signal follows route selection and specificity rather than the documented equal-cost forwarding design failure. It might stay normal while the required control regresses.
B:Monitor changes in logical-router interface ownership and route availability. This signal follows advanced routing engine logical routers rather than the documented equal-cost forwarding design failure. It might stay normal while the required control regresses.
D:Alert on BGP neighbor state changes and rejected route announcements. This signal follows bgp peer establishment rather than the documented equal-cost forwarding design failure. It might stay normal while the required control regresses.
Question 328
A network operations team has passed initial acceptance for route selection and specificity. The earlier condition was: Traffic for a specific partner subnet incorrectly follows a broader default route. Which continuing signal should it monitor while working to select the most specific eligible destination route?
- Monitor changes in logical-router interface ownership and route availability.
- Watch changes to overlapping routes and unexpected fallback to the default route.
- Track static-route changes and missing supplier prefix reachability.
- Watch OSPF neighbor resets and unexpected area mismatch messages.
Explanation
Correct Answer
B:Watch changes to overlapping routes and unexpected fallback to the default route. Longest-prefix matching selects the most specific applicable destination route. Ongoing evidence on the same failure path can detect drift after an initially successful deployment.
Incorrect Answers
A:Monitor changes in logical-router interface ownership and route availability. This signal follows advanced routing engine logical routers rather than the documented route selection and specificity failure. It might stay normal while the required control regresses.
C:Track static-route changes and missing supplier prefix reachability. This signal follows static route next hop rather than the documented route selection and specificity failure. It might stay normal while the required control regresses.
D:Watch OSPF neighbor resets and unexpected area mismatch messages. This signal follows ospf area adjacency rather than the documented route selection and specificity failure. It might stay normal while the required control regresses.
Question 329
Following remediation, an operator must detect regression rather than repeat one-time testing. Remote employees receive portal settings but no stable list of appropriate VPN gateways. Which monitoring activity is most relevant to the requirement to deliver the intended agent and gateway configuration to remote clients?
- Monitor portal login failures and incorrect agent-profile matches.
- Monitor gateway session establishment failures and tunnel disconnect frequency.
- Monitor repeated auth failures and changes to gateway authentication profiles.
- Monitor certificate expiry and new certificate-validation errors on clients.
Explanation
Correct Answer
A:Monitor portal login failures and incorrect agent-profile matches. A GlobalProtect portal distributes client configuration and gateway selection information. Ongoing evidence on the same failure path can detect drift after an initially successful deployment.
Incorrect Answers
B:Monitor gateway session establishment failures and tunnel disconnect frequency. This signal follows globalprotect gateway connectivity rather than the documented globalprotect portal configuration failure. It might stay normal while the required control regresses.
C:Monitor repeated auth failures and changes to gateway authentication profiles. This signal follows globalprotect authentication profile rather than the documented globalprotect portal configuration failure. It might stay normal while the required control regresses.
D:Monitor certificate expiry and new certificate-validation errors on clients. This signal follows globalprotect certificate trust rather than the documented globalprotect portal configuration failure. It might stay normal while the required control regresses.
Question 330
The affected PAN-OS capability is back in service after this problem: A client retrieves portal configuration but cannot establish its secured remote access tunnel. What should operations track so the goal to terminate an authenticated remote VPN connection at the intended gateway remains satisfied?
- Monitor repeated auth failures and changes to gateway authentication profiles.
- Monitor client tunnel-route drift and unexpected corporate traffic bypasses.
- Monitor incorrect internal-location matches after DNS or network changes.
- Monitor gateway session establishment failures and tunnel disconnect frequency.
Explanation
Correct Answer
D:Monitor gateway session establishment failures and tunnel disconnect frequency. A GlobalProtect gateway authenticates and terminates the remote access connection. Ongoing evidence on the same failure path can detect drift after an initially successful deployment.
Incorrect Answers
A:Monitor repeated auth failures and changes to gateway authentication profiles. This signal follows globalprotect authentication profile rather than the documented globalprotect gateway connectivity failure. It might stay normal while the required control regresses.
B:Monitor client tunnel-route drift and unexpected corporate traffic bypasses. This signal follows globalprotect split-tunnel routes rather than the documented globalprotect gateway connectivity failure. It might stay normal while the required control regresses.
C:Monitor incorrect internal-location matches after DNS or network changes. This signal follows globalprotect internal gateway recognition rather than the documented globalprotect gateway connectivity failure. It might stay normal while the required control regresses.
