SCS-C02 Threat Detection and Incident Response Practice Question
This SCS-C02 practice question tests your understanding of threat detection and incident response. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 company uses AWS CloudTrail to log all API activity. The security team wants to ensure that any changes to CloudTrail configuration (e.g., disabling the trail, deleting the trail, modifying the log delivery) are detected immediately. They have created a CloudWatch Events rule to capture the event 'StopLogging' and send an SNS notification. During testing, the team stops the trail and does not receive the notification. The CloudWatch Events rule is configured with the correct event pattern. What should the team check?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "immediately / without restart"
Why it matters: Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Check the IAM role associated with the CloudWatch Events rule to ensure it has permissions to publish to the SNS topic.
Option B is correct because CloudWatch Events rules require an IAM role to invoke the SNS topic. The role must have sns:Publish permissions. Option A is wrong because the trail is logging management events by default. Option C is wrong because the event pattern is correct, but the target action fails. Option D is wrong because SNS topic subscriptions are for subscribers, not for publishing.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Verify that the CloudTrail trail is logging management events.
Why it's wrong here
Trails log management events by default, so this is likely not the issue.
✗
Ensure that the event pattern includes the correct source and detail-type.
Why it's wrong here
The event pattern is correct if it matches the test event.
✗
Confirm that the SNS topic subscription is confirmed.
Why it's wrong here
The subscription confirmation is for email or other endpoints, but the rule publishes to the topic, not to the subscription.
✓
Check the IAM role associated with the CloudWatch Events rule to ensure it has permissions to publish to the SNS topic.
Why this is correct
The rule must assume a role with sns:Publish permission on the topic.
Clue confirmation
The clue word "immediately / without restart" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SCS-C02 NAT questions on configuration and troubleshooting.
Threat Detection and Incident Response — This question tests Threat Detection and Incident Response — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Check the IAM role associated with the CloudWatch Events rule to ensure it has permissions to publish to the SNS topic. — Option B is correct because CloudWatch Events rules require an IAM role to invoke the SNS topic. The role must have sns:Publish permissions. Option A is wrong because the trail is logging management events by default. Option C is wrong because the event pattern is correct, but the target action fails. Option D is wrong because SNS topic subscriptions are for subscribers, not for publishing.
What should I do if I get this SCS-C02 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SCS-C02 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "immediately / without restart". Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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