DOP-C02 Incident and Event Response Practice Question
A company has a multi-account AWS organization. The security team needs to detect and respond to security incidents across all accounts centrally. Which THREE services should the team use together? (Choose three.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
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AWS Security Hub
AWS Security Hub (Option A) centrally aggregates and prioritizes security findings from multiple AWS services and accounts, enabling cross-account visibility. Amazon GuardDuty (Option D) provides intelligent threat detection across accounts by analyzing VPC Flow Logs, DNS logs, and CloudTrail events. Amazon Detective (Option E) simplifies security investigation by automatically analyzing and correlating events from GuardDuty, Security Hub, and other sources. Together, these three services form a comprehensive incident detection and response solution. Option B (Inspector) is for vulnerability assessments, not incident response, and Option C (Macie) is for data classification, making them incorrect for this use case.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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AWS Security Hub
Why this is correct
AWS Security Hub is the correct answer because it is designed as a multi-account, multi-region aggregation service that centralizes security findings from AWS services and partner products. It enables a delegated administrator to view a consolidated security posture across the entire AWS Organizations hierarchy, evaluate compliance against standards like CIS and NIST, and automate responses via custom actions and AWS Config rules.
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Amazon Inspector
Why it's wrong here
Amazon Inspector is a vulnerability management service that scans compute workloads (EC2 instances, ECR images, and Lambda functions) for software vulnerabilities and unintended network exposure. It generates its own findings but lacks the ability to aggregate findings from other security services across multiple accounts, so it is a telemetry source consumed by Security Hub rather than the central view itself.
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Amazon Macie
Why it's wrong here
Amazon Macie uses machine learning and pattern matching to discover and classify sensitive data, such as personally identifiable information (PII) or credentials, stored in Amazon S3 buckets. It produces data classification and policy findings, but its scope is limited to data security and privacy, not cross-account security orchestration; it reports into Security Hub for central visibility rather than serving as the consolidated view.
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Amazon GuardDuty
Why this is correct
Amazon GuardDuty is a threat detection service that continuously monitors VPC Flow Logs, DNS query logs, CloudTrail management and data events, and S3 data events to identify malicious activity across all member accounts in an organization. While it supplies high-value findings to Security Hub, it cannot aggregate findings from Inspector, Macie, or other tools, so it is not the central aggregation point the security team requires.
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Amazon Detective
Why this is correct
Amazon Detective is a post-incident investigation service that ingests enrichments from GuardDuty findings, VPC Flow Logs, CloudTrail, and EKS audit logs to build interactive graphs of resources and identities. Its purpose is root-cause analysis and forensic correlation during a security investigation, not to provide a continuous multi-account compliance dashboard or consolidated finding aggregator, so it complements Security Hub rather than replacing it.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DOP-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DOP-C02 exam.