Question 450
A FortiAnalyzer operator is assigned the following problem: A SOC must alert when either a FortiGate malware detection OR a web-filter block occurs, but an analyst creates two manual incident tickets for every matching record. Which statement describes the decisive system dependency?
Explanation
Correct Answer
Rules within a basic event handler are combined with OR semantics so an event can arise when an individual configured rule matches. This behavior determines the engineering decision. The appropriate action is: Configure an appropriate basic event handler with separate malware and web-filter rules and scoped notification handling. Verify success by checking: A controlled malware event and a separate web-filter block each generate the intended event.
Incorrect Answers
The action “Grouping matching records by a stable attack identifier can reduce event multiplicity without discarding the associated logs” addresses a separate source case: A SOC alarm fires hundreds of times for the same scanning IP, and the investigation needs one grouped event per attacker rather than one for each destination port. Its underlying reason is: Grouping matching records by a stable attack identifier can reduce event multiplicity without discarding the associated logs. This question instead describes a SOC must alert when either a FortiGate malware detection OR a web-filter block occurs, but an analyst creates two manual incident tickets for every matching record. The original answer “Rules within a basic event handler are combined with OR semantics so an event can arise when an individual configured rule matches” targets that failure because rules within a basic event handler are combined with OR semantics so an event can arise when an individual configured rule matches.
The action “Some predefined handlers are disabled until activated; matching source logs are insufficient while the handler or its scope is inactive” addresses a separate source case: A predefined intrusion event handler is present in the catalog but does not produce events after fresh matching FortiGate attack logs arrive. Its underlying reason is: Some predefined handlers are disabled until activated; matching source logs are insufficient while the handler or its scope is inactive. This question instead describes a SOC must alert when either a FortiGate malware detection OR a web-filter block occurs, but an analyst creates two manual incident tickets for every matching record. The original answer “Rules within a basic event handler are combined with OR semantics so an event can arise when an individual configured rule matches” targets that failure because rules within a basic event handler are combined with OR semantics so an event can arise when an individual configured rule matches.
The action “A negative temporal relationship can detect the absence of a required follow-up event after a preceding event” addresses a separate source case: A SOC wants an alert if a failed backup occurs and no recovery confirmation arrives within the allowed interval. Its underlying reason is: A negative temporal relationship can detect the absence of a required follow-up event after a preceding event. This question instead describes a SOC must alert when either a FortiGate malware detection OR a web-filter block occurs, but an analyst creates two manual incident tickets for every matching record. The original answer “Rules within a basic event handler are combined with OR semantics so an event can arise when an individual configured rule matches” targets that failure because rules within a basic event handler are combined with OR semantics so an event can arise when an individual configured rule matches.