Quick Answer
VPC Traffic Mirroring is the correct choice because it captures and copies actual packet contents for outbound network traffic, enabling full packet-level auditing for compliance analysis. Unlike VPC Flow Logs, which only log metadata such as source and destination IPs, ports, and protocols, Traffic Mirroring provides the complete payload, allowing deep inspection of traffic leaving the VPC to the internet, on-premises via VPN, or to other VPCs through Transit Gateway. On the AWS Certified Advanced Networking Specialty ANS-C01 exam, this question tests your ability to distinguish between services that log metadata versus those that capture full packets—a common trap is selecting Flow Logs for compliance needs, but remember that compliance audits often require packet payloads, not just metadata. A helpful memory tip: think of Traffic Mirroring as a “packet photocopier” that duplicates the entire packet for analysis, while Flow Logs only give you the envelope’s address labels.
This ANS-C01 practice question tests your understanding of network security, compliance and governance. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company has a requirement to audit all network traffic leaving a VPC. The traffic includes traffic to the internet, to on-premises via VPN, and to other VPCs via Transit Gateway. Which AWS service can capture and log all outbound traffic for compliance analysis?
VPC Traffic Mirroring
Traffic Mirroring copies network traffic for analysis and compliance.
VPC Flow Logs
Why wrong: Flow Logs provide metadata (src/dst IP, ports) but not full packet contents.
AWS CloudTrail
Why wrong: CloudTrail logs API activity, not network traffic.
Amazon GuardDuty
Why wrong: GuardDuty generates security findings, not a complete audit log of all traffic.
Answer choices
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
Option D is correct because VPC Traffic Mirroring captures and copies traffic for analysis. Option A is wrong because Flow Logs log metadata, not full packets. Option B is wrong because CloudTrail logs API calls, not network traffic. Option C is wrong because GuardDuty detects threats but does not log all traffic.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
VPC Traffic Mirroring
Why this is correct
Traffic Mirroring copies network traffic for analysis and compliance.
Related concept
Read the scenario before looking for a memorised answer.
VPC Flow Logs
Why it's wrong here
Flow Logs provide metadata (src/dst IP, ports) but not full packet contents.
AWS CloudTrail
Why it's wrong here
CloudTrail logs API activity, not network traffic.
Amazon GuardDuty
Why it's wrong here
GuardDuty generates security findings, not a complete audit log of all traffic.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Identify which ANS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Network Security, Compliance and Governance — This question tests Network Security, Compliance and Governance — Read the scenario before looking for a memorised answer..
The correct answer is: VPC Traffic Mirroring — Option D is correct because VPC Traffic Mirroring captures and copies traffic for analysis. Option A is wrong because Flow Logs log metadata, not full packets. Option B is wrong because CloudTrail logs API calls, not network traffic. Option C is wrong because GuardDuty detects threats but does not log all traffic.
Identify which ANS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
About these practice questions
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Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company needs to audit network traffic in a VPC for compliance. Which THREE AWS services can be used to capture and analyze network traffic?
easyWhy B: Option A is correct because VPC Flow Logs capture IP traffic information. Option B is correct because Traffic Mirroring captures and inspects traffic. Option D is correct because AWS Network Firewall can log traffic. Option C is wrong because CloudTrail logs API calls, not network traffic. Option E is wrong because AWS Config monitors resource configurations, not traffic.
Variation 2. A company wants to audit all network traffic to and from EC2 instances for security analysis. Which AWS service should they enable?
easyWhy A: VPC Flow Logs capture information about IP traffic going to and from network interfaces in a VPC. Option D is correct. AWS CloudTrail records API calls, not network traffic. AWS Config records resource configuration changes. Amazon GuardDuty analyzes logs and flows for threats, but it does not capture the raw traffic itself.
Variation 3. A security team needs to audit all network traffic entering and leaving a VPC. Which AWS service should be used to capture IP traffic information?
easyWhy A: Option C is correct because VPC Flow Logs capture IP traffic information for network interfaces. Option A is wrong because CloudTrail records API calls. Option B is wrong because CloudWatch Logs can store logs but does not capture network traffic. Option D is wrong because AWS Config records resource configuration changes.
Last reviewed: Jun 20, 2026
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.
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