- A
Enable decryption to inspect encrypted traffic.
Why wrong: Decryption is needed for encrypted traffic but not for all traffic.
- B
Configure NAT policies for outbound traffic.
Why wrong: NAT is not required for inspection.
- C
Create a security rule that allows the traffic and includes a security profile group with threat prevention.
The rule must allow traffic and apply the threat prevention profile.
- D
Ensure the rule's action is set to 'allow'.
Security profiles are only applied when the action is allow.
- E
Use application override to force detection.
Why wrong: Application override is for forcing application identification, not for inspection.
Question 54 of 529
PCNSA Policy Evaluation and Management Practice Question
This PCNSA practice question tests your understanding of policy evaluation and management. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 ensure that traffic from the corporate network to the internet is inspected by the firewall's threat prevention features. Which TWO of the following are required to achieve this? (Choose two.)
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
✓
Create a security rule that allows the traffic and includes a security profile group with threat prevention.
Options C and D are correct. To ensure traffic is inspected by threat prevention features, you need a security rule that allows the traffic and includes a security profile group with threat prevention (C). Additionally, the rule's action must be set to 'allow' (D) for the traffic to pass through and be inspected; otherwise, traffic would be blocked. Option A (decryption) is only required for encrypted traffic, but the question does not specify that all traffic is encrypted, so it is not universally required. Option B (NAT) is for address translation, not inspection. Option E (application override) is not necessary for threat prevention.
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.
- ✗
Enable decryption to inspect encrypted traffic.
Why it's wrong here
Decryption is needed for encrypted traffic but not for all traffic.
- ✗
Configure NAT policies for outbound traffic.
Why it's wrong here
NAT is not required for inspection.
- ✓
Create a security rule that allows the traffic and includes a security profile group with threat prevention.
Why this is correct
The rule must allow traffic and apply the threat prevention profile.
Related concept
Static NAT maps one inside address to one outside address.
- ✓
Ensure the rule's action is set to 'allow'.
Why this is correct
Security profiles are only applied when the action is allow.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Use application override to force detection.
Why it's wrong here
Application override is for forcing application identification, not for inspection.
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.
Visual reference
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 PCNSA NAT questions on configuration and troubleshooting.
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FAQ
Questions learners often ask
What does this PCNSA question test?
Policy Evaluation and Management — This question tests Policy Evaluation and Management — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Create a security rule that allows the traffic and includes a security profile group with threat prevention. — Options C and D are correct. To ensure traffic is inspected by threat prevention features, you need a security rule that allows the traffic and includes a security profile group with threat prevention (C). Additionally, the rule's action must be set to 'allow' (D) for the traffic to pass through and be inspected; otherwise, traffic would be blocked. Option A (decryption) is only required for encrypted traffic, but the question does not specify that all traffic is encrypted, so it is not universally required. Option B (NAT) is for address translation, not inspection. Option E (application override) is not necessary for threat prevention.
What should I do if I get this PCNSA 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 PCNSA NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 24, 2026
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