Exam FCP_FGT_AD-7.6 Topic 3 Question 115 Discussion
Actual exam question for Fortinet's FCP_FGT_AD-7.6 exam
Question #: 115
Topic #: 3
Question #: 115
Topic #: 3
Refer to the exhibit.

FortiGate is configured for firewall authentication. When attempting to access an external website, the user is not presented with a login prompt.
What is the most likely reason for this situation?

FortiGate is configured for firewall authentication. When attempting to access an external website, the user is not presented with a login prompt.
What is the most likely reason for this situation?
Suggested Answer: A Vote an answer
In FortiGate firewall authentication, users are prompted for login credentials only when their initial request matches a policy requiring authentication.
In this configuration, the firewall policy permits HTTP, HTTPS, and ICMP traffic, but DNS service is missing.
Since browsers first need DNS resolution before sending HTTP/HTTPS requests, the user cannot reach the FortiGate for authentication.
Adding DNS to the Service field (Option A) enables the user to resolve hostnames and trigger the firewall authentication prompt.
In this configuration, the firewall policy permits HTTP, HTTPS, and ICMP traffic, but DNS service is missing.
Since browsers first need DNS resolution before sending HTTP/HTTPS requests, the user cannot reach the FortiGate for authentication.
Adding DNS to the Service field (Option A) enables the user to resolve hostnames and trigger the firewall authentication prompt.
by Lambert at Feb 25, 2026, 04:28 AM
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