- A
Create a decryption profile that excludes the failing domains
Why wrong: Decryption profiles control cipher and certificate settings, not domain exclusions. Domain exclusions are managed via decryption policy rules.
- B
Disable SSL decryption for all traffic
Why wrong: This would resolve the issue but disable security benefits of decryption for all traffic, which is too drastic and not a best practice.
- C
Reorder the decryption policy rules so that the exclusion rules are above the global decrypt rule
Correct: In a decryption policy, rules are evaluated top-down. Exclusion rules must appear before more general decrypt rules to take effect.
- D
Replace the firewall's internal CA certificate with a publicly trusted certificate
Why wrong: The internal CA certificate is used to sign decrypted certificates; using a public CA is not supported for this purpose and may cause trust issues.
PCNSE Decryption and SSL Inspection Practice Question
This PCNSE practice question tests your understanding of decryption and ssl inspection. 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 multinational corporation uses Palo Alto Networks firewalls at its headquarters and five branch offices. SSL Forward Proxy decryption is enabled for all outbound HTTPS traffic. Recently, users in the finance department have reported that several banking and financial websites fail to load, displaying a certificate error in the browser. The errors occur only for these specific sites, while other HTTPS sites work fine. The firewall administrator has already added decryption exclusion rules for the affected domains, but the problem persists. The decryption policy is configured with a single rule that decrypts all ssl service traffic, and the exclusion rules are placed below this global decrypt rule. Which of the following is the best course of action to resolve the issue?
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.
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
Reorder the decryption policy rules so that the exclusion rules are above the global decrypt rule
The exclusion rules must be placed above the global decrypt rule because decryption policy rules are evaluated in order from top to bottom. If the global decrypt rule is above, it will match first and attempt decryption, causing certificate errors. Moving the exclusions above ensures they are evaluated before the decrypt rule.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create a decryption profile that excludes the failing domains
Why it's wrong here
Decryption profiles control cipher and certificate settings, not domain exclusions. Domain exclusions are managed via decryption policy rules.
- ✗
Disable SSL decryption for all traffic
Why it's wrong here
This would resolve the issue but disable security benefits of decryption for all traffic, which is too drastic and not a best practice.
- ✓
Reorder the decryption policy rules so that the exclusion rules are above the global decrypt rule
Why this is correct
Correct: In a decryption policy, rules are evaluated top-down. Exclusion rules must appear before more general decrypt rules to take effect.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Replace the firewall's internal CA certificate with a publicly trusted certificate
Why it's wrong here
The internal CA certificate is used to sign decrypted certificates; using a public CA is not supported for this purpose and may cause trust issues.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PCNSE NAT questions on configuration and troubleshooting.
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Decryption and SSL Inspection — study guide chapter
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FAQ
Questions learners often ask
What does this PCNSE question test?
Decryption and SSL Inspection — This question tests Decryption and SSL Inspection — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Reorder the decryption policy rules so that the exclusion rules are above the global decrypt rule — The exclusion rules must be placed above the global decrypt rule because decryption policy rules are evaluated in order from top to bottom. If the global decrypt rule is above, it will match first and attempt decryption, causing certificate errors. Moving the exclusions above ensures they are evaluated before the decrypt rule.
What should I do if I get this PCNSE question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PCNSE NAT questions on configuration and troubleshooting.
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?
Static NAT maps one inside address to one outside address.
About these practice questions
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Last reviewed: Jun 24, 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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