This PCNSE practice question tests your understanding of managing troubleshooting and high availability. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An administrator runs 'show high-availability state' and sees that the local firewall is in 'passive' state, but the remote firewall shows 'active'. However, the HA1 link is up and the configuration is synchronized. What could cause the passive firewall to not take over after the active fails?
The configuration is not synchronized
Why wrong: Config sync is separate; state transition does not require it.
Session synchronization is not fully complete
Why wrong: Session sync does not affect state transition.
The HA2 link is down
Why wrong: HA2 link is for session sync, not state.
Preemptive mode is disabled and the passive firewall has a lower priority
Without preemptive, the passive stays passive unless priority is higher.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Preemptive mode is disabled and the passive firewall has a lower priority
Option A is correct because if preemptive mode is disabled, the passive firewall will not become active after the active fails, unless it has higher priority. Option B is wrong because session sync does not affect state. Option C is wrong because HA2 link failure does not prevent state transition. Option D is wrong because config sync is not related.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
The configuration is not synchronized
Why it's wrong here
Config sync is separate; state transition does not require it.
Session synchronization is not fully complete
Why it's wrong here
Session sync does not affect state transition.
The HA2 link is down
Why it's wrong here
HA2 link is for session sync, not state.
Preemptive mode is disabled and the passive firewall has a lower priority
Why this is correct
Without preemptive, the passive stays passive unless priority is higher.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the PCNSE exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Identify which PCNSE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Managing Troubleshooting and High Availability — This question tests Managing Troubleshooting and High Availability — Read the scenario before looking for a memorised answer..
The correct answer is: Preemptive mode is disabled and the passive firewall has a lower priority — Option A is correct because if preemptive mode is disabled, the passive firewall will not become active after the active fails, unless it has higher priority. Option B is wrong because session sync does not affect state. Option C is wrong because HA2 link failure does not prevent state transition. Option D is wrong because config sync is not related.
Identify which PCNSE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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.
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