ANS-C01 Network Security, Compliance and Governance Practice Question
Which TWO AWS services can be used to monitor and log network traffic in a VPC for security analysis? (Choose two.)
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
Options A and C are correct. VPC Flow Logs capture IP traffic information for network interfaces in a VPC, enabling security analysis of traffic patterns. AWS CloudTrail logs API calls to the AWS Management Console and SDKs, providing visibility into user activity and resource changes. Option B (AWS Config) is incorrect because it evaluates resource configurations for compliance, not network traffic logging. Option D (Amazon Inspector) is a vulnerability assessment service that scans for software vulnerabilities and unintended network exposure. Option E (Amazon GuardDuty) is a threat detection service that analyzes data sources like DNS logs and VPC Flow Logs, but it is not itself a logging service for network 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.
- ✓
VPC Flow Logs
Why this is correct
Captures metadata about IP traffic.
- ✗
AWS Config
Why it's wrong here
Tracks configuration changes, not network traffic.
- ✓
AWS CloudTrail
Why this is correct
Logs API activity for auditing.
- ✗
Amazon Inspector
Why it's wrong here
Scans for vulnerabilities, not network logs.
- ✗
Amazon GuardDuty
Why it's wrong here
Detects threats using various data sources but does not log raw network traffic.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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