SCS-C02 Security Logging and Monitoring Practice Question
This SCS-C02 practice question tests your understanding of security logging and monitoring. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 runs a multi-account AWS environment using AWS Organizations. The security team needs to implement centralized logging for all AWS CloudTrail events across all accounts. They create a new trail in the management account with the following configuration: trail name 'central-trail', apply to all accounts in the organization, enable data events for all S3 buckets, and store logs in a centralized S3 bucket. After one week, they notice that some accounts are not delivering CloudTrail logs to the central bucket. The security engineer verifies that the trail is still configured to apply to all accounts and that the S3 bucket policy allows cross-account access. What is the MOST likely reason for the missing logs?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Some accounts were added to the organization after the trail was created, and the trail was not updated to include them
When a trail is created in the management account with 'apply to all accounts in the organization', it automatically includes all current member accounts. However, if new accounts are added to the AWS Organization after the trail is created, the trail does not automatically extend to those new accounts. The trail must be updated (e.g., via the CloudTrail console or API) to include the newly added accounts, or the organization trail feature must be re-enabled. This is why logs from accounts added after trail creation are missing.
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.
✗
The member accounts have not enabled CloudTrail Insights
Why it's wrong here
CloudTrail Insights is optional and not required for logging.
✗
The S3 bucket policy does not grant the correct permissions to the member accounts
Why it's wrong here
The engineer verified the policy is correct.
✗
The trail is not configured as a multi-region trail
Why it's wrong here
Organization trails are multi-region by default.
✓
Some accounts were added to the organization after the trail was created, and the trail was not updated to include them
Why this is correct
When new accounts join, the trail must be updated or they need to enable the trail manually.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
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 assume 'apply to all accounts' means the trail dynamically includes any account added later, but in reality, the trail only applies to accounts that were members at the time of creation and must be manually updated for new accounts.
Detailed technical explanation
How to think about this question
When you enable an organization trail in AWS CloudTrail, the trail is created in the management account and automatically applies to all existing member accounts. However, the CloudTrail service does not automatically propagate the trail configuration to accounts that join the organization after the trail is created. You must either update the trail (using the `UpdateTrail` API with the `--include-global-service-events` and `--is-organization-trail` flags) or re-create the organization trail to include new accounts. This behavior is documented in the AWS CloudTrail User Guide under 'Creating a Trail for an Organization'.
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.
Security Logging and Monitoring — This question tests Security Logging and Monitoring — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Some accounts were added to the organization after the trail was created, and the trail was not updated to include them — When a trail is created in the management account with 'apply to all accounts in the organization', it automatically includes all current member accounts. However, if new accounts are added to the AWS Organization after the trail is created, the trail does not automatically extend to those new accounts. The trail must be updated (e.g., via the CloudTrail console or API) to include the newly added accounts, or the organization trail feature must be re-enabled. This is why logs from accounts added after trail creation are missing.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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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