- A
The authentication policy is placed in the pre-rulebase but the security policy is in post-rulebase.
Why wrong: This is a plausible configuration but if the authentication policy is in pre-rulebase, it should be evaluated before security rules. The issue is likely ordering within the same rulebase, not pre vs post.
- B
The 'ssl' application must have a custom signature defined.
Why wrong: The 'ssl' application is predefined and does not require a custom signature.
- C
The authentication policy must be placed before the security rule that allows the web-browsing traffic.
Authentication policies are evaluated in order relative to security rules. If the security rule allowing the traffic appears before the authentication rule, users are not prompted.
- D
The user-ID agent is not set to capture HTTPS traffic.
Why wrong: User-ID agent is not required for authentication policy to prompt for credentials; it is used for identity mappings but the captive portal can still trigger without it.
PCNSE Practice Question: Securing Users and Applications with Authentication
This PCNSE practice question tests your understanding of securing users and applications with authentication. 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 configures an authentication policy to require authentication for the 'ssl' application. After committing, the firewall does not prompt users for credentials when they access HTTPS sites. Which step is most likely missing?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
The authentication policy must be placed before the security rule that allows the web-browsing traffic.
Authentication policies are evaluated before security policies. If the authentication policy is placed after the security rule that allows the traffic, users bypass authentication. Option B correctly identifies that the authentication policy must be placed before the security 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.
- ✗
The authentication policy is placed in the pre-rulebase but the security policy is in post-rulebase.
Why it's wrong here
This is a plausible configuration but if the authentication policy is in pre-rulebase, it should be evaluated before security rules. The issue is likely ordering within the same rulebase, not pre vs post.
- ✗
The 'ssl' application must have a custom signature defined.
Why it's wrong here
The 'ssl' application is predefined and does not require a custom signature.
- ✓
The authentication policy must be placed before the security rule that allows the web-browsing traffic.
Why this is correct
Authentication policies are evaluated in order relative to security rules. If the security rule allowing the traffic appears before the authentication rule, users are not prompted.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
The user-ID agent is not set to capture HTTPS traffic.
Why it's wrong here
User-ID agent is not required for authentication policy to prompt for credentials; it is used for identity mappings but the captive portal can still trigger without it.
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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Securing Users and Applications with Authentication — study guide chapter
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Securing Users and Applications with Authentication practice questions
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FAQ
Questions learners often ask
What does this PCNSE question test?
Securing Users and Applications with Authentication — This question tests Securing Users and Applications with Authentication — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The authentication policy must be placed before the security rule that allows the web-browsing traffic. — Authentication policies are evaluated before security policies. If the authentication policy is placed after the security rule that allows the traffic, users bypass authentication. Option B correctly identifies that the authentication policy must be placed before the security 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: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
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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