Exam PCNSE topic 1 question 353 discussion

Actual exam question from Palo Alto Networks's PCNSE

Question #: 353
Topic #: 1

An administrator has configured a pair of firewalls using high availability in Active/Passive mode.
Path Monitoring has been enabled with a Failure Condition of "any."
A path group is configured with Failure Condition of "all" and contains a destination IP of 8.8.8.8 and 4.2.2.2 with a Ping Interval of 500ms and a Ping count of 3.
Which scenario will cause the Active firewall to fail over?

A. IP address 8.8.8.8 is unreachable for 1 second.
B. IP addresses 8.8.8.8 and 4.2.2.2 are unreachable for 2 seconds.
C. IP address 4.2.2.2 is unreachable for 2 seconds.
D. IP addresses 8.8.8.8 and 4.2.2.2 are unreachable for 1 second.

Show Suggested Answer

Suggested Answer: B 🗳️

by mysteryzjoker at Sept. 28, 2022, 10:21 a.m.

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Metgatz

10 months, 3 weeks ago

B - 500 ms = 1.5 seconds

upvoted 1 times

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sov4

1 year, 3 months ago

Selected Answer: B

B. 500ms interval between pings. Ping count = number of pings to lose before triggering the failure condition. 3 pings x 500ms = 1.5 seconds. At 2 seconds the failure would be initiated. 8.8.8.8 and 4.2.2.2 would have to be unreachable because because it's "all" not "any" https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-web-interface-help/device/device-high-availability/ha-link-and-path-monitoring

upvoted 2 times

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mic_mic

1 year, 9 months ago

Selected Answer: B

Correct link to study is: https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-web-interface-help/device/device-high-availability/ha-link-and-path-monitoring

upvoted 1 times

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mysteryzjoker

2 years, 1 month ago

B) 2 seconds as 3 x 500ms is more than 1 sec, and failure condition set to all means both have to be unreachable> https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/networking/static-routes/configure-path-monitoring-for-a-static-route

upvoted 4 times

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