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SCS-C03Domain 1: DetectionDetection & ResponsemediumSingle choice

A GuardDuty finding flags an EC2 instance for unusual API calls. Security needs to visualize relationships — which IPs it talked to, what the IAM role did — to scope the incident. Which service?

A.Amazon Detective

Behavior-graph investigation = Detective. Correct.

B.AWS Security Hub

Hub aggregates findings — it doesn't do deep entity analysis.

C.Amazon Inspector

Inspector scans for vulnerabilities — not incident investigation.

D.VPC Flow Logs alone

Flow logs are raw data — Detective makes them investigable.

Why this answer

Detective builds behavior graphs from CloudTrail/VPC Flow Logs/GuardDuty to investigate incidents — entity timelines, connected IPs, API call patterns. Security Hub aggregates findings; Detective investigates them.

Correct answer: A · Last reviewed 2026-11-05

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