20+ practice questions focused on Threat Detection and Incident Response — one of the most tested topics on the AWS Certified Security Specialty SCS-C02 exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Threat Detection and Incident Response PracticeA security engineer is configuring an AWS environment to detect and respond to potential security threats. Which AWS service can be used to automate the remediation of unwanted access to Amazon S3 buckets by invoking AWS Lambda functions?
Explanation: Amazon GuardDuty is a threat detection service that continuously monitors for malicious activity and unauthorized behavior across AWS accounts and workloads. It can integrate with AWS Lambda functions via CloudWatch Events to automate remediation actions, such as blocking unwanted access to S3 buckets by updating bucket policies or removing public access. This makes GuardDuty the correct choice for detecting and automatically responding to security threats against S3 resources.
A security team suspects that an attacker has compromised an EC2 instance and is using it to launch outbound DDoS attacks. The team needs to quickly isolate the instance while preserving forensic data. Which combination of actions should the team take? (Choose TWO.)
Explanation: Option A is correct because applying a restrictive security group that blocks all outbound traffic immediately stops the EC2 instance from sending any network packets, including DDoS traffic, without terminating the instance. This preserves the running state and allows forensic data collection from the instance's memory and disk. Security groups act as a stateful virtual firewall at the instance level, so blocking outbound traffic effectively isolates the instance from the network.
During an incident response, a security engineer needs to collect memory and disk forensics from a running EC2 Windows instance without causing the instance to crash. The engineer has AWS Systems Manager SSM Agent installed. Which method should the engineer use?
Explanation: Option B is correct because AWS Systems Manager Inventory can collect both memory and disk forensics from a running EC2 Windows instance without causing it to crash. The SSM Agent, already installed, allows Inventory to gather metadata such as running processes (memory) and file system details (disk) via the AWS-CollectInventory document, which is designed for live data collection without rebooting or halting the instance.
A company uses AWS Organizations with multiple accounts. The security team wants to ensure that all API calls in the organization are logged and retained for at least one year. Which AWS services or features should be used to meet these requirements? (Choose TWO.)
Explanation: Option C is correct because an Amazon S3 lifecycle policy can automatically transition CloudTrail log objects from S3 Standard to S3 Glacier after one year, meeting the retention requirement cost-effectively. Option E is correct because AWS CloudTrail with an organization trail logs all API calls across all accounts in the AWS Organization, ensuring comprehensive logging.
A security engineer is investigating a potential data exfiltration incident. The engineer notices large volumes of data being transferred from an Amazon S3 bucket to an external IP address. Which AWS services can be used to detect and alert on such behavior? (Choose THREE.)
Explanation: Amazon CloudWatch Logs can ingest and analyze S3 access logs, which record detailed information about requests made to an S3 bucket, including the source IP address, request type, and bytes transferred. By analyzing these logs with CloudWatch Logs Insights or metric filters, you can detect large data transfers to external IPs and trigger alerts via CloudWatch Alarms, making it a valid detection and alerting mechanism for data exfiltration.
+15 more Threat Detection and Incident Response questions available
Practice all Threat Detection and Incident Response questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Threat Detection and Incident Response. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Threat Detection and Incident Response questions on the SCS-C02 frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Threat Detection and Incident Response is tested as part of the AWS Certified Security Specialty SCS-C02 blueprint. Practicing with targeted Threat Detection and Incident Response questions ensures you can handle any format or difficulty that appears.
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Difficulty is subjective, but Threat Detection and Incident Response is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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