PCNSA Policy Evaluation and Management Practice Question
Which TWO are best practices for managing security policies in a Palo Alto Networks firewall?
⚠ Common exam trap
PCNSA often tests the misconception that disabling unused rules is sufficient, but best practice is to remove them after confirming they are no longer needed, and to place specific rules above general ones.
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
✓
Place most specific rules at the top of the rulebase.
Option B is correct because Palo Alto Networks evaluates security rules top-down and stops at the first match, so placing the most specific rules above broader ones ensures precise traffic handling and prevents a general rule from shadowing a narrower one. Option D is correct because the firewall tracks hit counts per rule, and periodically reviewing those counters to identify and delete rules with zero hits reduces rulebase bloat and shrinks the attack surface. Option A is not a best practice since logging every rule, including high-volume allow rules, generates excessive log traffic and storage overhead; logging should be targeted to security-relevant events. Option C is wrong because a single 'allow all' rule defeats the purpose of a least-privilege, zone-based policy and provides no visibility or control. Option E is wrong because disabling rather than removing unused rules leaves dead configuration in the rulebase, and proper hygiene calls for deletion after confirming zero hits.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable logging on all rules for maximum visibility.
Why it's wrong here
Logging every rule floods the traffic log with allowed sessions, consuming storage and obscuring genuine threats; best practice logs at session end on rules that matter. Enabling logging on all rules would be correct only where full audit capture is mandated, such as a regulated enclave.
- ✓
Place most specific rules at the top of the rulebase.
Why this is correct
Palo Alto Networks evaluates rules top-down and stops at the first match, so a broad rule placed above a narrow one shadows it. Ordering most specific rules first ensures targeted permits or denies actually take effect before general rules intercept the traffic.
- ✗
Use a single 'allow all' rule to simplify management.
Why it's wrong here
A blanket allow-all rule grants every application and user unrestricted access, defeating the least-privilege model that App-ID and zone-based policy enforcement depend on. It is tempting because it eliminates rule-management effort, and it would suit a lab or trusted backplane segment where granular inspection is deliberately not required.
- ✓
Regularly review and remove unused rules using hit counts.
Why this is correct
Hit counts reveal which rules never match traffic, exposing redundant or obsolete entries. Removing them shrinks the rulebase, reduces audit complexity, and eliminates stale permissive rules that could otherwise be exploited, directly supporting the least-privilege and hygiene goals of policy management.
- ✗
Disable unused rules instead of removing them.
Why it's wrong here
Disabling leaves the rule in the rulebase, consuming policy evaluation and obscuring the security posture; best practise is to remove rules that are no longer required. Disabling is tempting because it preserves configuration for quick rollback, and it would be correct for a rule temporarily suspended during troubleshooting or a seasonal change window.
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This PCNSA question is part of Courseiva's 385-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Palo Alto Networks exam blueprint
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.