SCS-C02 Threat Detection and Incident Response Practice Question
This SCS-C02 practice question tests your understanding of threat detection and incident response. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A security analyst notices an IAM role 'AdminRole' is being assumed from an IP address outside the company's allowed network. The analyst wants to receive real-time alerts when this role is assumed from unauthorized locations. Which combination of services should be used?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
AWS CloudTrail, Amazon CloudWatch Events, and Amazon SNS
Option D is correct because AWS CloudTrail logs IAM role assumption events (sts:AssumeRole) as CloudTrail events, which can be sent to Amazon CloudWatch Events (now Amazon EventBridge) as a real-time event stream. CloudWatch Events rules can then match specific patterns (e.g., source IP outside allowed ranges) and trigger an Amazon SNS notification to alert the security analyst immediately. This combination provides the real-time alerting required without additional polling or storage.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
AWS CloudTrail, Amazon S3, and Amazon Athena
Why it's wrong here
This setup is for historical analysis, not real-time alerts.
✗
AWS Config, Amazon SNS, and AWS Lambda
Why it's wrong here
AWS Config is for configuration compliance, not event monitoring.
✗
Amazon GuardDuty and AWS Lambda
Why it's wrong here
GuardDuty provides threat detection but may not be as direct for this specific event.
✓
AWS CloudTrail, Amazon CloudWatch Events, and Amazon SNS
Why this is correct
CloudTrail logs the event, CloudWatch Events matches the pattern, SNS sends alert.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AWS Config (which evaluates configuration compliance) with CloudTrail (which records API activity), or they assume GuardDuty can be customized for specific role assumption alerts, when in fact GuardDuty does not support custom event pattern matching for individual IAM roles.
Detailed technical explanation
How to think about this question
Under the hood, CloudTrail delivers management events (including sts:AssumeRole) to CloudWatch Events via a default integration; you create a CloudWatch Events rule with an event pattern that filters on the 'userIdentity.arn' and 'sourceIPAddress' fields from the CloudTrail event JSON. The rule then invokes an SNS topic, which can send email/SMS/push notifications in near real-time (typically within 5 minutes). A subtle behavior is that CloudTrail events are delivered to CloudWatch Events in batches, so there may be a slight delay, but it is still considered real-time for operational alerting.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Threat Detection and Incident Response — This question tests Threat Detection and Incident Response — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS CloudTrail, Amazon CloudWatch Events, and Amazon SNS — Option D is correct because AWS CloudTrail logs IAM role assumption events (sts:AssumeRole) as CloudTrail events, which can be sent to Amazon CloudWatch Events (now Amazon EventBridge) as a real-time event stream. CloudWatch Events rules can then match specific patterns (e.g., source IP outside allowed ranges) and trigger an Amazon SNS notification to alert the security analyst immediately. This combination provides the real-time alerting required without additional polling or storage.
What should I do if I get this SCS-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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