- A
Enable user-ID on the interface where users connect.
Why wrong: User-ID is not required for captive portal to prompt authentication; it is used for mapping identities.
- B
Configure a security policy to allow the captive portal traffic before authentication.
Why wrong: Security policy is for allowing traffic after authentication; the captive portal itself is triggered before security policy.
- C
Create an authentication policy matching the captive portal traffic.
The authentication policy triggers the captive portal for matching traffic.
- D
Configure a captive portal profile with an external authentication server.
The captive portal profile defines how authentication is performed, including the server.
- E
Import the captive portal certificate.
Why wrong: Certificates are optional for captive portal if using HTTP; HTTPS requires a certificate but is not a required step.
Configuring Captive Portal Authentication: Two Essential Steps
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 is configuring authentication for a captive portal. Which two configuration steps are necessary? (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 an authentication policy matching the captive portal traffic.
Option C is correct because an authentication policy must be created to match the captive portal traffic and trigger authentication. This policy defines which traffic requires authentication and specifies the authentication profile to use. Without it, the firewall will not know to intercept the user's HTTP request and redirect them to the captive portal login page.
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.
- ✗
Enable user-ID on the interface where users connect.
Why it's wrong here
User-ID is not required for captive portal to prompt authentication; it is used for mapping identities.
- ✗
Configure a security policy to allow the captive portal traffic before authentication.
Why it's wrong here
Security policy is for allowing traffic after authentication; the captive portal itself is triggered before security policy.
- ✓
Create an authentication policy matching the captive portal traffic.
Why this is correct
The authentication policy triggers the captive portal for matching traffic.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Configure a captive portal profile with an external authentication server.
Why this is correct
The captive portal profile defines how authentication is performed, including the server.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Import the captive portal certificate.
Why it's wrong here
Certificates are optional for captive portal if using HTTP; HTTPS requires a certificate but is not a required step.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the need for User-ID (option A) or a pre-authentication security policy (option B) with the actual requirements for captive portal, when in fact the authentication policy and captive portal profile with an external server are the two mandatory steps.
Detailed technical explanation
How to think about this question
Captive portal authentication works by intercepting HTTP traffic (typically on port 80) and redirecting the user to a login page. The authentication policy is evaluated before the security policy, and if it matches, the firewall presents the captive portal. The authentication profile within the captive portal configuration can reference an external authentication server (e.g., RADIUS, LDAP) to validate credentials, which is why option D is also correct. Under the hood, the firewall uses a temporary session to allow the initial HTTP request to reach the captive portal page before the user is authenticated.
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.
- →
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: Create an authentication policy matching the captive portal traffic. — Option C is correct because an authentication policy must be created to match the captive portal traffic and trigger authentication. This policy defines which traffic requires authentication and specifies the authentication profile to use. Without it, the firewall will not know to intercept the user's HTTP request and redirect them to the captive portal login page.
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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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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