easyMultiple ChoiceObjective-mapped
PCNSA Practice Question: A network administrator wants to ensure that if…
A network administrator wants to ensure that if the primary firewall fails, a secondary firewall takes over without any manual intervention. Which high availability feature is essential for this automatic failover?
⚠ Common exam trap
Candidates often confuse session synchronization (which maintains session state) with the actual failover trigger, but without heartbeat monitoring, the secondary firewall would never know when to take over.
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
✓
Heartbeat monitoring
Heartbeat monitoring is the essential feature for automatic failover because it allows the secondary firewall to detect the primary firewall's failure through continuous health checks. When the heartbeat is lost, the secondary firewall automatically assumes the active role without manual intervention, ensuring high availability.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Heartbeat monitoring
Why this is correct
Heartbeat (keepalive) is required for detecting failure and triggering automatic failover.
- ✗
Session synchronization
Why it's wrong here
Session sync ensures sessions are maintained, but not required for failover to occur.
- ✗
Floating IP addresses
Why it's wrong here
Floating IPs are used for traffic transition, not for detection of failure.
- ✗
Preemptive mode
Why it's wrong here
Preemptive mode controls whether the active firewall automatically returns after recovery, not essential for initial failover.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCNSA 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 PCNSA exam.