Question 170
A laptop caches a resolved malicious IP address and opens connections without generating a new DNS query, so the operator treats missing DNS logs as proof no traffic occurred. Which TWO complementary choices provide the appropriate response AND the key evidence for verifying it? Select TWO.
Explanation
Correct Answers
Review DNS policy/profile, DNS transport, query logs, client resolver configuration, DoH/DoT behavior, browser HTTPS requests and matching web-filter outcomes. This distinguishes the relevant FortiGate device, session or controller evidence. DNS filtering acts on DNS lookups, not arbitrary HTTP URL paths or already established IP connections, and encrypted DNS may bypass poorly placed resolver controls. The corresponding action is: Choose FortiOS DNS filtering or web filtering controls based on the traffic path and available request metadata, verifying that protected clients actually use the intended DNS resolver. This is the verification portion of the required complementary pair. Scenario: A laptop caches a resolved malicious IP address and opens connections without generating a new DNS query, so the operator treats missing DNS logs as proof no traffic occurred.
Choose FortiOS DNS filtering or web filtering controls based on the traffic path and available request metadata, verifying that protected clients actually use the intended DNS resolver. This directly addresses the FortiOS configuration or response required by the case. DNS filtering acts on DNS lookups, not arbitrary HTTP URL paths or already established IP connections, and encrypted DNS may bypass poorly placed resolver controls. Verify with: Review DNS policy/profile, DNS transport, query logs, client resolver configuration, DoH/DoT behavior, browser HTTPS requests and matching web-filter outcomes. This is the implementation portion of the required complementary pair. Scenario: A laptop caches a resolved malicious IP address and opens connections without generating a new DNS query, so the operator treats missing DNS logs as proof no traffic occurred.
Incorrect Answers
Permitted test downloads receive the intended malware verdict, while excluded sensitive services keep documented and limited inspection behavior. This choice relates to HTTPS malware scanning with controlled exception validation, not the complementary implementation-and-evidence pair for the case. Implement: Choose FortiOS DNS filtering or web filtering controls based on the traffic path and available request metadata, verifying that protected clients actually use the intended DNS resolver. Check: Review DNS policy/profile, DNS transport, query logs, client resolver configuration, DoH/DoT behavior, browser HTTPS requests and matching web-filter outcomes. Scenario: A laptop caches a resolved malicious IP address and opens connections without generating a new DNS query, so the operator treats missing DNS logs as proof no traffic occurred.
Inspect configured simple/wildcard/regex pattern type, URL filter order, exempt/action behavior, relevant hostname/path visibility and web-filter logs. This choice relates to Static URL filter ordering and wildcard match behavior, not the complementary implementation-and-evidence pair for the case. Implement: Choose FortiOS DNS filtering or web filtering controls based on the traffic path and available request metadata, verifying that protected clients actually use the intended DNS resolver. Check: Review DNS policy/profile, DNS transport, query logs, client resolver configuration, DoH/DoT behavior, browser HTTPS requests and matching web-filter outcomes. Scenario: A laptop caches a resolved malicious IP address and opens connections without generating a new DNS query, so the operator treats missing DNS logs as proof no traffic occurred.
Use FortiGuard website categories and supported rating overrides to enforce approved access policy, documenting exceptions for miscategorized business sites. This choice relates to FortiGuard category ratings and controlled recategorization, not the complementary implementation-and-evidence pair for the case. Implement: Choose FortiOS DNS filtering or web filtering controls based on the traffic path and available request metadata, verifying that protected clients actually use the intended DNS resolver. Check: Review DNS policy/profile, DNS transport, query logs, client resolver configuration, DoH/DoT behavior, browser HTTPS requests and matching web-filter outcomes. Scenario: A laptop caches a resolved malicious IP address and opens connections without generating a new DNS query, so the operator treats missing DNS logs as proof no traffic occurred.