PCNSE Practice Question: Managing Troubleshooting and High Availability
An engineer is troubleshooting an HA pair where session synchronization is not working. Which THREE steps should be taken to diagnose the issue? (Choose three.)
⚠ Common exam trap
A common mix-up: candidates confuse the HA1 and HA2 links, assuming that checking the HA1 link status (which handles heartbeats) will reveal session sync issues, when in fact only the HA2 link is responsible for session synchronization.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Verify that the HA2 link is operationally up
The HA2 link is the dedicated link for session synchronization in a Palo Alto Networks HA pair. If the HA2 link is not operationally up, session state information cannot be exchanged between the firewalls, causing synchronization to fail. Verifying the HA2 link status is a fundamental first step in troubleshooting session sync issues.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Verify that the HA2 link is operationally up
Why this is correct
HA2 is used for session synchronization.
- ✓
Check the session synchronization status using 'show running session-sync'
Why this is correct
This command shows sync status.
- ✗
Check the HA1 link status using 'show high-availability state'
Why it's wrong here
HA1 is for control traffic, not session sync.
- ✓
Review the system logs for session sync errors
Why this is correct
Logs can indicate sync failures.
- ✗
Enable flow-based routing on both firewalls
Why it's wrong here
Flow-based routing is not related to session sync.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCNSE practice question is part of Courseiva's free Palo Alto Networks certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCNSE exam.