NSE7 Advanced VPN and Zero Trust Practice Question
An administrator has configured FortiGate as a SAML service provider (SP) for VPN authentication. Users are prompted for credentials but authentication fails even though they can authenticate directly at the IdP portal. What is the most likely misconfiguration?
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 FortiGate's entity ID or ACS URL registered at the IdP is incorrect
If users can authenticate at the IdP but not via FortiGate SP, the problem is likely that the FortiGate entity ID or ACS URL does not match what is registered at the IdP.
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 IdP is using HTTP-POST binding while FortiGate expects HTTP-Redirect
Why it's wrong here
FortiGate supports both bindings; binding mismatch would cause a different failure.
- ✗
The IdP certificate is not imported on FortiGate
Why it's wrong here
If the IdP certificate were missing, the SAML response signature would not validate, causing a different error.
- ✓
The FortiGate's entity ID or ACS URL registered at the IdP is incorrect
Why this is correct
Mismatched endpoints prevent the IdP from sending the SAML assertion to the correct location.
- ✗
SAML authentication is not enabled in the VPN portal
Why it's wrong here
If SAML were not enabled, the user would not even be redirected to the IdP.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This NSE7 practice question is part of Courseiva's free Fortinet 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 NSE7 exam.