This PCNSA practice question tests your understanding of decryption and monitoring. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Exhibit
Refer to the exhibit.
```
admin@PA-500> show running decryption-policy
Decryption policy:
# name from to source destination service action profile
1 decrypt-all trust untrust any any any decrypt default
2 no-decrypt-fin trust untrust 10.0.0.0/24 192.168.1.0/24 any no-decrypt none
3 decrypt-inbound untrust trust any 10.0.0.5/32 https decrypt inbound
```
A user at IP 10.0.0.10 is accessing a server at 192.168.1.5. According to the decryption policy, what will happen to the traffic?
Refer to the exhibit.
```
admin@PA-500> show running decryption-policy
Decryption policy:
# name from to source destination service action profile
1 decrypt-all trust untrust any any any decrypt default
2 no-decrypt-fin trust untrust 10.0.0.0/24 192.168.1.0/24 any no-decrypt none
3 decrypt-inbound untrust trust any 10.0.0.5/32 https decrypt inbound
```
A
The traffic will be decrypted using the default profile.
Why wrong: Rule 2 matches first and has action no-decrypt.
B
The traffic will not be decrypted because of the no-decrypt rule.
Rule 2 matches the traffic exactly and sets no-decrypt.
C
The traffic will be decrypted using the inbound profile.
Why wrong: Inbound profile is for rule 3, which applies to untrust-to-trust traffic.
D
The traffic will be blocked because no security rule allows it.
Why wrong: Security policies are separate; this output only shows decryption policy.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The traffic will not be decrypted because of the no-decrypt rule.
The decryption policy contains a no-decrypt rule that matches traffic from source IP 10.0.0.10 to destination IP 192.168.1.5. Since the no-decrypt rule explicitly excludes this traffic from decryption, the firewall will forward the traffic without applying any decryption profile. This is the correct behavior because no-decrypt rules take precedence over decrypt rules for matching traffic.
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.
✗
The traffic will be decrypted using the default profile.
Why it's wrong here
Rule 2 matches first and has action no-decrypt.
✓
The traffic will not be decrypted because of the no-decrypt rule.
Why this is correct
Rule 2 matches the traffic exactly and sets no-decrypt.
Related concept
Read the scenario before looking for a memorised answer.
✗
The traffic will be decrypted using the inbound profile.
Why it's wrong here
Inbound profile is for rule 3, which applies to untrust-to-trust traffic.
✗
The traffic will be blocked because no security rule allows it.
Why it's wrong here
Security policies are separate; this output only shows decryption policy.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Palo Alto Networks often tests the misconception that decryption policy can block traffic or that a no-decrypt rule still applies a profile; the trap here is confusing decryption policy actions (decrypt/no-decrypt) with security policy actions (allow/deny).
Trap categories for this question
Command / output trap
Security policies are separate; this output only shows decryption policy.
Detailed technical explanation
How to think about this question
In Palo Alto Networks firewalls, decryption policy rules are evaluated in order, and a no-decrypt rule (with action 'no-decrypt') causes the firewall to skip SSL/TLS interception for the matched traffic. The firewall still inspects the encrypted traffic using security rules, but the decryption engine does not terminate or re-encrypt the session. This is commonly used for traffic that must remain encrypted due to compliance (e.g., healthcare or financial data) or for traffic to trusted external services where decryption is unnecessary.
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 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.
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: The traffic will not be decrypted because of the no-decrypt rule. — The decryption policy contains a no-decrypt rule that matches traffic from source IP 10.0.0.10 to destination IP 192.168.1.5. Since the no-decrypt rule explicitly excludes this traffic from decryption, the firewall will forward the traffic without applying any decryption profile. This is the correct behavior because no-decrypt rules take precedence over decrypt rules for matching traffic.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.