Question 339 of 1,570
SCS-C02 Security Logging and Monitoring Practice Question
A security engineer is designing a centralized logging solution for multiple AWS accounts. Which TWO services should be used to aggregate logs from all accounts into a single account? (Choose TWO.)
⚠ Common exam trap
Test-takers frequently confuse log destinations (like S3) with log aggregation services, failing to recognize that S3 is a passive storage target and does not actively collect or aggregate logs from multiple accounts without the orchestration provided by CloudWatch Logs or CloudTrail.
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
✓
Amazon CloudWatch Logs
Amazon CloudWatch Logs can receive log data from multiple AWS accounts via cross-account subscription filters, allowing a centralized logging account to aggregate logs from all source accounts. AWS CloudTrail can be configured to deliver trail logs from multiple accounts to a single S3 bucket in a central account, enabling consolidated audit logging. Together, these two services provide a comprehensive centralized logging solution for multi-account environments.
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 Config
Why it's wrong here
Config aggregates configuration data, not logs.
- ✗
VPC Flow Logs
Why it's wrong here
VPC Flow Logs can be sent to S3 or CloudWatch, but not directly to a central account.
- ✓
Amazon CloudWatch Logs
Why this is correct
CloudWatch Logs can use cross-account subscription filters.
- ✗
Amazon S3
Why it's wrong here
S3 is a storage service, not an aggregation service.
- ✓
AWS CloudTrail
Why this is correct
CloudTrail can deliver logs to a central S3 bucket.
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 |
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Last reviewed: Jul 4, 2026
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.
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