Question 620
A security team adds an explicit deny rule for outbound SMB but sees no alert because the rule does not log its matching traffic. Which observable result BEST demonstrates that the intended FortiGate security or connectivity requirement is satisfied?
Explanation
Correct Answer
Operators can prove why a given session was accepted or denied and can distinguish missing logging from absent traffic. This is the operational validation outcome rather than merely an enabled setting. An implicit firewall deny may have different log visibility than an explicit deny; no traffic log is not reliable evidence that a packet never reached the FortiGate. Scenario: A security team adds an explicit deny rule for outbound SMB but sees no alert because the rule does not log its matching traffic.
Incorrect Answers
Unauthenticated clients encounter the intended portal or deny behavior and authenticated users reach only their approved resources. This result would test Captive portal and explicit firewall user authentication but does not demonstrate the desired FortiGate outcome here. Verify instead: Operators can prove why a given session was accepted or denied and can distinguish missing logging from absent traffic. Scenario: A security team adds an explicit deny rule for outbound SMB but sees no alert because the rule does not log its matching traffic.
Only intended flows match the narrow allow rule while unauthorized traffic remains denied with sufficient diagnostics. This result would test Firewall policy evaluation order, interfaces and least privilege but does not demonstrate the desired FortiGate outcome here. Verify instead: Operators can prove why a given session was accepted or denied and can distinguish missing logging from absent traffic. Scenario: A security team adds an explicit deny rule for outbound SMB but sees no alert because the rule does not log its matching traffic.
Internal clients resolve and reach the intended server consistently without bypassing stateful inspection or exposing additional services. This result would test NAT hairpin and internal use of public VIP names but does not demonstrate the desired FortiGate outcome here. Verify instead: Operators can prove why a given session was accepted or denied and can distinguish missing logging from absent traffic. Scenario: A security team adds an explicit deny rule for outbound SMB but sees no alert because the rule does not log its matching traffic.