- A
less mp-log authd.log
This log file contains detailed authentication daemon messages including failures and mismatches.
- B
show running security-policy
Why wrong: Security policy does not directly affect authentication prompt; it shows allow/deny rules.
- C
show user user-id count
Why wrong: Shows number of user mappings but does not indicate why authentication is not triggering.
- D
show authentication rule matching traffic from the user's IP
This command simulates traffic to see if an authentication rule matches.
- E
show system resources
Why wrong: System resources are unrelated to authentication troubleshooting.
Question 301 of 516
PCNSE Practice Question: Securing Users and Applications with Authentication
This PCNSE practice question tests your understanding of securing users and applications with authentication. 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.
When troubleshooting an authentication issue where users are not prompted for credentials, which two logs or commands would be most useful? (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
✓
less mp-log authd.log
Option A is correct because the `authd.log` file contains detailed authentication daemon logs, including credential challenges, authentication successes, and failures. When users are not prompted for credentials, this log reveals whether the firewall is even attempting to authenticate the user or if the request is being bypassed due to policy misconfiguration. Option D is correct because the `show authentication rule matching traffic from the user's IP` command allows you to test which authentication policy rule applies to a specific user's traffic, helping identify if the rule is missing, misordered, or incorrectly configured to skip credential prompting.
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.
- ✓
less mp-log authd.log
Why this is correct
This log file contains detailed authentication daemon messages including failures and mismatches.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
show running security-policy
Why it's wrong here
Security policy does not directly affect authentication prompt; it shows allow/deny rules.
- ✗
show user user-id count
Why it's wrong here
Shows number of user mappings but does not indicate why authentication is not triggering.
- ✓
show authentication rule matching traffic from the user's IP
Why this is correct
This command simulates traffic to see if an authentication rule matches.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
show system resources
Why it's wrong here
System resources are unrelated to authentication troubleshooting.
Common exam traps
Common exam trap: answer the scenario, not the keyword
A common misconception in Palo Alto Networks environments is that security policies control authentication prompts, when in fact authentication is governed by a separate authentication policy that must be explicitly configured to trigger credential challenges.
Trap categories for this question
Command / output trap
Security policy does not directly affect authentication prompt; it shows allow/deny rules.
Detailed technical explanation
How to think about this question
The authentication daemon (`authd`) manages the entire authentication flow, including browser-based captive portal redirects, credential validation against external identity providers (e.g., LDAP, RADIUS, SAML), and session creation. The `show authentication rule matching traffic` command evaluates the authentication policy in real-time, showing which rule (if any) matches the source IP, destination, and service, and whether the action is `allow` (no prompt) or `authentication` (prompt). A common subtlety is that authentication rules are evaluated before security rules, and if a rule with action `allow` matches, the user will never see a login prompt even if the security policy later requires authentication.
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 PCNSE 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.
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Securing Users and Applications with Authentication — study guide chapter
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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 — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: less mp-log authd.log — Option A is correct because the `authd.log` file contains detailed authentication daemon logs, including credential challenges, authentication successes, and failures. When users are not prompted for credentials, this log reveals whether the firewall is even attempting to authenticate the user or if the request is being bypassed due to policy misconfiguration. Option D is correct because the `show authentication rule matching traffic from the user's IP` command allows you to test which authentication policy rule applies to a specific user's traffic, helping identify if the rule is missing, misordered, or incorrectly configured to skip credential prompting.
What should I do if I get this PCNSE 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.
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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 →
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Last reviewed: Jul 4, 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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