- A
Application Override
Why wrong: Override bypasses App-ID, not suitable for granular policy based on application.
- B
Quality of Service (QoS) policy
Why wrong: QoS manages bandwidth, not application filtering.
- C
Security policy with App-ID
Security rules can match on application identity, allowing per-application policies.
- D
Decryption policy
Why wrong: Decryption policy controls decryption, not application-based access.
Question 91 of 516
Using App-ID for Application-Based Policy Enforcement
This PCNSE practice question tests your understanding of securing traffic and app-id. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 wants to apply different security policies for different applications that may use the same IP addresses and ports. Which firewall configuration feature should be used?
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
✓
Security policy with App-ID
App-ID is the correct feature because it enables the firewall to identify and enforce security policies based on the application, regardless of the IP address or port used. This allows different security policies for different applications even when they share the same IP and port, such as HTTP and FTP both using TCP/80.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Application Override
Why it's wrong here
Override bypasses App-ID, not suitable for granular policy based on application.
- ✗
Quality of Service (QoS) policy
Why it's wrong here
QoS manages bandwidth, not application filtering.
- ✓
Security policy with App-ID
Why this is correct
Security rules can match on application identity, allowing per-application policies.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Decryption policy
Why it's wrong here
Decryption policy controls decryption, not application-based access.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse Application Override with App-ID, thinking that manually overriding application classification is the solution, when in fact App-ID automatically identifies applications and allows policy differentiation without manual intervention.
Detailed technical explanation
How to think about this question
App-ID uses multiple mechanisms—protocol decoding, application signatures, SSL/TLS fingerprinting, and behavioral analysis—to identify applications even when they use non-standard ports. For example, SSH on TCP/443 can be distinguished from HTTPS by analyzing the initial handshake and payload patterns. This allows the firewall to enforce granular security policies such as blocking Facebook while allowing Google Drive, even if both use HTTPS on port 443.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Securing Traffic and App-ID — study guide chapter
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FAQ
Questions learners often ask
What does this PCNSE question test?
Securing Traffic and App-ID — This question tests Securing Traffic and App-ID — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Security policy with App-ID — App-ID is the correct feature because it enables the firewall to identify and enforce security policies based on the application, regardless of the IP address or port used. This allows different security policies for different applications even when they share the same IP and port, such as HTTP and FTP both using TCP/80.
What should I do if I get this PCNSE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 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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