PCNSA App-ID and Content-ID Practice Question
A security team notices that custom application 'myapp' is not being identified by App-ID even though the correct application override is in place. What should they verify first?
⚠ Common exam trap
Test-takers frequently assume an application override is a standalone fix that works regardless of the security policy rule's App-ID setting, when in fact the override is only evaluated if the rule has App-ID enabled and the traffic matches that rule.
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 traffic reaches the firewall and is allowed by a security policy rule that has App-ID enabled.
App-ID identification occurs after the firewall receives traffic and matches a security policy rule. Even with a correct application override, the traffic must first be allowed by a security policy rule that has App-ID enabled; otherwise, the override is never evaluated. The override only applies to the application identification process, not to the policy enforcement layer.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Ensure the application uses a standard port.
Why it's wrong here
Custom apps can use non-standard ports; App-ID can still identify them.
- ✗
Ensure SSL decryption is enabled for the application.
Why it's wrong here
Decryption is not required for App-ID.
- ✗
Check if the application override is applied to the correct rule.
Why it's wrong here
Override is already in place; other factors are more likely.
- ✓
Verify that the traffic reaches the firewall and is allowed by a security policy rule that has App-ID enabled.
Why this is correct
If traffic is blocked by an earlier rule, App-ID never processes it.
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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.