The answer is to create an authentication policy with the source zone set to 'Corporate', the action set to 'allow', and the authentication method configured as 'no MFA'. This configuration is correct because authentication policies in Palo Alto Networks firewalls evaluate traffic based on source zone and can override the global authentication profile; by explicitly allowing traffic from the Corporate zone without MFA, you satisfy the requirement to enforce MFA for VPN users (typically from untrusted zones) while exempting internal corporate users. On the PCNSE exam, this scenario tests your understanding of how authentication policy rules are processed before the global authentication profile, and a common trap is confusing the 'allow' action with requiring MFA—remember that 'allow' with 'no MFA' simply permits access without additional authentication. The key memory tip is: "Corporate zone, allow, no MFA—VPN users still get the global MFA."
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.
A company wants to enforce MFA for VPN users but allow users to authenticate without MFA when connecting from the corporate office. Which authentication policy configuration achieves this?
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 with source zone 'Corporate' set to 'allow' and authentication method 'no MFA'
Option C is correct because it creates an authentication policy that explicitly allows users from the 'Corporate' source zone to authenticate without MFA by setting the authentication method to 'no MFA'. This meets the requirement of enforcing MFA for VPN users (typically from untrusted zones) while exempting corporate office users. The authentication policy evaluates the source zone and applies the specified authentication method, overriding the global authentication profile 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.
✗
Disable MFA in the global Authentication Profile
Why it's wrong here
This disables MFA for all users, not just corporate office.
✗
Create an authentication policy with source zone 'Corporate' set to 'require MFA'
Why it's wrong here
This would require MFA even from corporate office, not desired.
✓
Create an authentication policy with source zone 'Corporate' set to 'allow' and authentication method 'no MFA'
Why this is correct
This allows authentication without MFA from the corporate zone.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create an authentication policy with source zone 'Corporate' set to 'no-auth' and action 'allow'
Why it's wrong here
This would skip authentication entirely for corporate traffic, not just MFA.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Palo Alto Networks often tests the distinction between 'no MFA' (authenticate without multi-factor) and 'no-auth' (bypass authentication entirely), and candidates frequently confuse these two options, thinking they achieve the same result.
Detailed technical explanation
How to think about this question
In Palo Alto Networks firewalls, authentication policies are evaluated before authentication profiles and can override the global authentication method based on criteria like source zone, user, or destination. The 'no MFA' method in an authentication policy still requires primary authentication (e.g., username/password or certificate) but skips the secondary MFA factor, which is ideal for trusted networks. This is distinct from 'no-auth', which bypasses all authentication and is typically used for captive portal or guest access scenarios.
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 — 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 with source zone 'Corporate' set to 'allow' and authentication method 'no MFA' — Option C is correct because it creates an authentication policy that explicitly allows users from the 'Corporate' source zone to authenticate without MFA by setting the authentication method to 'no MFA'. This meets the requirement of enforcing MFA for VPN users (typically from untrusted zones) while exempting corporate office users. The authentication policy evaluates the source zone and applies the specified authentication method, overriding the global authentication profile for matching traffic.
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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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.
Question Discussion
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