- A
CloudTrail management events are not being logged for the IAM role.
Correct. If CloudTrail management events for the IAM role are not logged, GuardDuty cannot analyze the role's S3 API calls and will not generate findings.
- B
VPC Flow Logs are not enabled for the VPC where the role is used.
Why wrong: Incorrect. VPC Flow Logs are used for network traffic analysis, not S3 API call monitoring. Missing findings for S3 API calls are not caused by VPC Flow Logs.
- C
The account is not a Delegated Admin for GuardDuty.
Why wrong: Incorrect. Delegated admin status is relevant for multi-account GuardDuty management, but not for the basic detection of S3 API calls within a single account.
- D
S3 data events are not enabled in CloudTrail.
Why wrong: Incorrect. S3 data events are needed for object-level operations (e.g., GetObject, PutObject). However, the question refers to suspicious S3 API calls, which are typically management-level (e.g., PutBucketPolicy). Data events are not the primary cause for missing management-level findings.
SCS-C02 CloudTrail Management Events Practice Question
This SCS-C02 practice question tests your understanding of security logging and monitoring. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: cloudTrail Management Events. 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 engineer is troubleshooting why Amazon GuardDuty is not generating findings for suspicious S3 API calls made by an IAM role. The engineer has verified that GuardDuty is enabled in the account and region. What is a likely reason for the missing findings?
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 management events are not being logged for the IAM role.
Amazon GuardDuty relies on CloudTrail management events to analyze S3 API calls at the bucket level (e.g., PutBucketPolicy, DeleteBucket) for suspicious activity. If CloudTrail management events are not being logged for the IAM role, GuardDuty will not receive the necessary data to generate findings for these specific calls. Note that for object-level operations such as GetObject or PutObject, S3 data events would need to be enabled, but the question refers to suspicious S3 API calls that are management events.
Key principle: CloudTrail Management Events
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 management events are not being logged for the IAM role.
Why this is correct
Correct. If CloudTrail management events for the IAM role are not logged, GuardDuty cannot analyze the role's S3 API calls and will not generate findings.
Related concept
CloudTrail Management Events
- ✗
VPC Flow Logs are not enabled for the VPC where the role is used.
Why it's wrong here
Incorrect. VPC Flow Logs are used for network traffic analysis, not S3 API call monitoring. Missing findings for S3 API calls are not caused by VPC Flow Logs.
- ✗
The account is not a Delegated Admin for GuardDuty.
Why it's wrong here
Incorrect. Delegated admin status is relevant for multi-account GuardDuty management, but not for the basic detection of S3 API calls within a single account.
- ✗
S3 data events are not enabled in CloudTrail.
Why it's wrong here
Incorrect. S3 data events are needed for object-level operations (e.g., GetObject, PutObject). However, the question refers to suspicious S3 API calls, which are typically management-level (e.g., PutBucketPolicy). Data events are not the primary cause for missing management-level findings.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates often assume that all S3-related findings require S3 data events, but GuardDuty detects suspicious management-level S3 API calls using CloudTrail management events. The trap is overlooking that the IAM role's actions may not be captured by management event logging.
Detailed technical explanation
How to think about this question
GuardDuty ingests CloudTrail management events via an internal event bus to detect anomalous API activity, such as unusual IAM role usage patterns or API calls from unexpected IP addresses. If CloudTrail is configured to exclude specific IAM roles from logging (e.g., via resource-based policies or trail exclusions), those actions are invisible to GuardDuty, leading to blind spots. In real-world scenarios, this often occurs when organizations inadvertently exclude high-privilege roles from logging to reduce costs, inadvertently crippling threat detection.
KKey Concepts to Remember
- CloudTrail Management Events
- GuardDuty Data Sources
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
CloudTrail Management Events
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.
Review cloudTrail Management Events, then practise related SCS-C02 questions on the same topic to reinforce the concept.
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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 — CloudTrail Management Events.
What is the correct answer to this question?
The correct answer is: CloudTrail management events are not being logged for the IAM role. — Amazon GuardDuty relies on CloudTrail management events to analyze S3 API calls at the bucket level (e.g., PutBucketPolicy, DeleteBucket) for suspicious activity. If CloudTrail management events are not being logged for the IAM role, GuardDuty will not receive the necessary data to generate findings for these specific calls. Note that for object-level operations such as GetObject or PutObject, S3 data events would need to be enabled, but the question refers to suspicious S3 API calls that are management events.
What should I do if I get this SCS-C02 question wrong?
Review cloudTrail Management Events, then practise related SCS-C02 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
CloudTrail Management Events
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Last reviewed: Jul 4, 2026
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