The correct answer is to create a decryption policy rule with a 'No Decrypt' action for the 'Financial Services' and 'Health and Medicine' URL categories, placed above the existing decrypt rule. This works because Palo Alto Networks decryption policies are evaluated top-down, and the first matching rule determines the action; by placing the 'No Decrypt' rule higher, traffic to sensitive financial and healthcare sites is excluded from SSL Forward Proxy decryption, resolving loading issues caused by certificate pinning or regulatory compliance concerns. On the PCNSA exam, this scenario tests your understanding of decryption policy order and category-based exclusions, a common trap being to mistakenly apply a security rule instead of a decryption rule. Remember the memory tip: "No Decrypt first, decrypt last" to ensure compliance for regulated categories like financial and healthcare traffic.
PCNSA Decryption and Monitoring Practice Question
This PCNSA practice question tests your understanding of decryption and monitoring. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
A university uses a Palo Alto Networks firewall to protect its network. They have implemented SSL Forward Proxy decryption for all student traffic. Recently, the IT helpdesk has received complaints from students that some websites (e.g., online banking, healthcare portals) are not loading properly. The firewall logs show that these sites are being decrypted, and no threats are detected. The university's legal team has advised that decryption of financial and healthcare sites may violate regulations. The network team wants to quickly resolve the issue while ensuring compliance. What is the best course of action?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Modify the existing decrypt rule to decrypt all categories except those two.
Why wrong: Still decrypts other traffic, but not as precise as a separate rule.
B
Disable decryption entirely for all student traffic.
Why wrong: Overly broad; security benefits are lost.
C
Create a security policy rule to allow traffic to those URL categories without inspection.
Why wrong: Security policy does not control decryption; decryption policy must change.
D
Create a decryption policy rule with action 'No Decrypt' for URL categories 'Financial Services' and 'Health and Medicine', placed above the existing decrypt rule.
This bypasses decryption for compliant categories.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a decryption policy rule with action 'No Decrypt' for URL categories 'Financial Services' and 'Health and Medicine', placed above the existing decrypt rule.
Option D is correct because it creates a decryption policy rule with action 'No Decrypt' for the specific URL categories 'Financial Services' and 'Health and Medicine', placed above the existing decrypt rule. This ensures that traffic to these sensitive categories is excluded from SSL Forward Proxy decryption, resolving the loading issues caused by certificate pinning or regulatory violations, while still decrypting all other student traffic. The rule order is critical because Palo Alto Networks decryption policies are evaluated top-down, and the first match determines the action.
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.
✗
Modify the existing decrypt rule to decrypt all categories except those two.
Why it's wrong here
Still decrypts other traffic, but not as precise as a separate rule.
✗
Disable decryption entirely for all student traffic.
Why it's wrong here
Overly broad; security benefits are lost.
✗
Create a security policy rule to allow traffic to those URL categories without inspection.
Why it's wrong here
Security policy does not control decryption; decryption policy must change.
✓
Create a decryption policy rule with action 'No Decrypt' for URL categories 'Financial Services' and 'Health and Medicine', placed above the existing decrypt rule.
Why this is correct
This bypasses decryption for compliant categories.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse security policy rules with decryption policy rules, thinking that a security rule can bypass decryption, when in fact decryption is controlled exclusively by decryption policy rules with actions like 'Decrypt' or 'No Decrypt'.
Detailed technical explanation
How to think about this question
SSL Forward Proxy decryption works by intercepting TLS handshakes and re-encrypting traffic using a firewall-issued certificate, which can break sites that use certificate pinning (e.g., banking portals) or violate regulations like HIPAA or GLBA. The 'No Decrypt' action in a decryption policy rule tells the firewall to bypass decryption for matching traffic, allowing the original TLS handshake to proceed directly between client and server. In real-world deployments, decryption policy rules are evaluated before security rules, and placing a 'No Decrypt' rule for sensitive categories above a broad decrypt rule ensures compliance without impacting other traffic.
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 PCNSA 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.
Decryption and Monitoring — This question tests Decryption and Monitoring — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a decryption policy rule with action 'No Decrypt' for URL categories 'Financial Services' and 'Health and Medicine', placed above the existing decrypt rule. — Option D is correct because it creates a decryption policy rule with action 'No Decrypt' for the specific URL categories 'Financial Services' and 'Health and Medicine', placed above the existing decrypt rule. This ensures that traffic to these sensitive categories is excluded from SSL Forward Proxy decryption, resolving the loading issues caused by certificate pinning or regulatory violations, while still decrypting all other student traffic. The rule order is critical because Palo Alto Networks decryption policies are evaluated top-down, and the first match determines the action.
What should I do if I get this PCNSA question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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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.
Question Discussion
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