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Security Logging and Monitoring →hardMultiple ChoiceObjective-mapped

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 uses AWS CloudTrail to log all API calls. The security team notices that some PutObject API calls are not appearing in the CloudTrail logs. The S3 bucket in question has server access logging enabled. What is the MOST likely reason for the missing CloudTrail events?

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.

A
CloudTrail was not configured to log data events for S3.
Data events (like PutObject) are not logged by default; they require explicit configuration in the trail.
B
Server access logs are interfering with CloudTrail.
Why wrong: Server access logs are independent and do not affect CloudTrail.
C
The PutObject calls were made via the AWS Management Console.
Why wrong: CloudTrail logs all PutObject calls regardless of the client.
D
The S3 bucket policy denies CloudTrail from logging.
Why wrong: CloudTrail does not require a bucket policy to log; it only needs a bucket policy if it delivers logs to that bucket.

Full breakdown with real-world context →

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

✓

CloudTrail was not configured to log data events for S3.

CloudTrail logs are categorized into management events and data events. By default, CloudTrail only logs management events (e.g., CreateBucket, DeleteBucket). Data events, such as S3 object-level operations like PutObject, must be explicitly enabled in the CloudTrail trail configuration. Since the security team sees missing PutObject calls, the most likely cause is that CloudTrail was not configured to log S3 data events.

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.

✓
CloudTrail was not configured to log data events for S3.
Why this is correct
Data events (like PutObject) are not logged by default; they require explicit configuration in the trail.
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.
✗
Server access logs are interfering with CloudTrail.
Why it's wrong here
Server access logs are independent and do not affect CloudTrail.
✗
The PutObject calls were made via the AWS Management Console.
Why it's wrong here
CloudTrail logs all PutObject calls regardless of the client.
✗
The S3 bucket policy denies CloudTrail from logging.
Why it's wrong here
CloudTrail does not require a bucket policy to log; it only needs a bucket policy if it delivers logs to that bucket.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often confuse CloudTrail management events (which are logged by default) with data events (which require explicit configuration), leading them to overlook the need to enable S3 data event logging.

Detailed technical explanation

How to think about this question

CloudTrail data event logging for S3 requires explicit selection of the bucket(s) and the specific read/write events (e.g., GetObject, PutObject) in the trail configuration. Under the hood, CloudTrail uses a service-linked role to subscribe to S3 data plane event notifications via Amazon S3 Event Notifications, which are then recorded as CloudTrail events. A common real-world scenario is that organizations enable CloudTrail but forget to enable data events, leading to gaps in object-level audit trails.

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.

Quick reference

AWS S3 Storage Class Comparison

Storage Class	Min Duration	Retrieval	Use Case
S3 Standard	None	Immediate	Frequently accessed data
S3 Standard-IA	30 days	Immediate	Infrequent access, rapid retrieval
S3 One Zone-IA	30 days	Immediate	Non-critical infrequent data
S3 Intelligent-Tiering	None	Immediate–hours	Unknown or changing access patterns
S3 Glacier Instant	90 days	Milliseconds	Archive with instant retrieval
S3 Glacier Flexible	90 days	Minutes–hours	Archive, flexible retrieval
S3 Glacier Deep Archive	180 days	Hours	Long-term compliance archive

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.

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FAQ

Questions learners often ask

What does this SCS-C02 question test?

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: CloudTrail was not configured to log data events for S3. — CloudTrail logs are categorized into management events and data events. By default, CloudTrail only logs management events (e.g., CreateBucket, DeleteBucket). Data events, such as S3 object-level operations like PutObject, must be explicitly enabled in the CloudTrail trail configuration. Since the security team sees missing PutObject calls, the most likely cause is that CloudTrail was not configured to log S3 data events.

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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This SCS-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 SCS-C02 exam.