PCNSA App-ID and Content-ID Practice Question
Which THREE factors should be considered when troubleshooting App-ID misidentification? (Choose three.)
⚠ Common exam trap
Many candidates think packet size or MTU issues affect App-ID, but App-ID operates at layers 4-7 and is not impacted by fragmentation; the real focus is on decryption, routing symmetry, and override configurations.
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
✓
An application override is configured that misidentifies the app.
An application override explicitly forces the firewall to classify traffic as a specific application, bypassing App-ID's signature-based identification. If the override is misconfigured, the firewall will consistently misidentify the traffic, leading to incorrect policy enforcement. This is a common cause of App-ID misidentification when administrators manually override the default identification process.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Packet size exceeds the maximum transmission unit.
Why it's wrong here
Packet size is unrelated.
- ✓
An application override is configured that misidentifies the app.
Why this is correct
Override can force an incorrect identification.
- ✓
Traffic is encrypted and decryption is not enabled.
Why this is correct
Encrypted traffic may not be fully identified without decryption.
- ✓
Asymmetric routing is causing the firewall to see only one direction of traffic.
Why this is correct
App-ID requires both directions.
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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.