ANS-C01 Network Management and Operations Practice Question
A network engineer needs to capture and analyze network traffic between two EC2 instances in the same VPC for troubleshooting. Which AWS service should be used?
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 capture IP traffic information for network interfaces within a VPC, enabling analysis of traffic between EC2 instances. Option A is wrong because CloudTrail logs API calls, not network traffic. Option B is wrong because CloudWatch Metrics provide performance metrics, not packet-level details. Option D is wrong because AWS Config monitors configuration changes, not traffic.
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 CloudTrail.
Why it's wrong here
AWS CloudTrail logs API calls, not network traffic between instances.
- ✗
Amazon CloudWatch Metrics.
Why it's wrong here
Amazon CloudWatch Metrics provide performance metrics, not packet-level traffic details.
- ✓
VPC Flow Logs.
Why this is correct
VPC Flow Logs capture IP traffic information for network interfaces, enabling traffic analysis between instances.
- ✗
AWS Config.
Why it's wrong here
AWS Config monitors configuration changes, not network traffic.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This ANS-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 ANS-C01 exam.