ANS-C01 Network Management and Operations Practice Question
A company wants to monitor network traffic to and from an EC2 instance to detect anomalous outbound traffic. Which AWS service should they use to capture and analyze the traffic?
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 Traffic Mirroring
VPC Traffic Mirroring (option D) is correct because it captures and copies network traffic from EC2 instances for analysis. Amazon GuardDuty (option A) is a threat detection service that analyzes logs and findings but does not capture raw traffic. Amazon CloudWatch Logs (option B) can capture application and system logs, but not full packet-level traffic. AWS Config (option C) records configuration changes to resources, not network traffic. Therefore, VPC Traffic Mirroring is the appropriate service for capturing and analyzing network traffic to detect anomalous outbound behavior.
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 GuardDuty
Why it's wrong here
GuardDuty analyzes VPC Flow Logs and DNS logs, but does not capture packets.
- ✗
Amazon CloudWatch Logs
Why it's wrong here
CloudWatch Logs can store VPC Flow Logs but not capture full packets.
- ✗
AWS Config
Why it's wrong here
Config records configuration changes, not traffic.
- ✓
VPC Traffic Mirroring
Why this is correct
Traffic Mirroring captures and copies traffic for analysis.
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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.