PAS-C01 Operations and Maintenance Practice Question
An SAP system running on AWS experiences high latency when accessing data in Amazon S3. The operations team suspects network bandwidth limitations. Which AWS service can be used to monitor the network throughput between the EC2 instances and S3?
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
✓
VPC Flow Logs
(VPC Flow Logs) is correct because VPC Flow Logs capture IP traffic information and can help analyze network throughput between EC2 instances and S3. Option A is incorrect because CloudWatch S3 metrics are request-level, not network-level. Option B is incorrect because Trusted Advisor provides best practice checks, not real-time monitoring. Option C is incorrect because AWS Config records resource changes, not network performance.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon CloudWatch S3 metrics
Why it's wrong here
Incorrect. Amazon CloudWatch S3 metrics provide request-level metrics (e.g., latency, request counts) but not network throughput information.
- ✗
AWS Trusted Advisor
Why it's wrong here
Incorrect. AWS Trusted Advisor offers recommendations for best practices (e.g., security, cost optimization) but does not provide real-time network monitoring.
- ✗
AWS Config
Why it's wrong here
Incorrect. AWS Config tracks configuration changes to resources, not network performance or throughput.
- ✓
VPC Flow Logs
Why this is correct
Correct. VPC Flow Logs capture IP traffic metadata (e.g., source/destination, packet/byte counts) which can be used to analyze network throughput between EC2 instances and S3.
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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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PAS-C01 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 PAS-C01 exam.