- A
AWS Config
Why wrong: Config tracks resource configuration changes.
- B
Traffic Mirroring
Traffic Mirroring captures and inspects traffic.
- C
VPC Flow Logs
Flow logs capture network traffic metadata.
- D
AWS Network Firewall
Network Firewall can log traffic that passes through it.
- E
AWS CloudTrail
Why wrong: CloudTrail logs API activity, not network traffic.
Question 1,221 of 1,705
VPC Traffic Capture and Audit Services — Which AWS Tools to Use | AWS Advanced Networking Specialty Explained
This ANS-C01 practice question tests your understanding of network security, compliance and governance. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. A key principle to apply: vPC Flow Logs. 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 needs to audit network traffic in a VPC for compliance. Which THREE AWS services can be used to capture and analyze network 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
✓
Traffic Mirroring
Option B is correct because Traffic Mirroring captures and inspects traffic. Option C is correct because VPC Flow Logs capture IP traffic information. Option D is correct because AWS Network Firewall can log traffic. Option A is wrong because AWS Config monitors resource configurations, not traffic. Option E is wrong because CloudTrail logs API calls, not network traffic.
Key principle: VPC Flow Logs
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 Config
Why it's wrong here
Config tracks resource configuration changes.
- ✓
Traffic Mirroring
Why this is correct
Traffic Mirroring captures and inspects traffic.
Related concept
VPC Flow Logs
- ✓
VPC Flow Logs
Why this is correct
Flow logs capture network traffic metadata.
Related concept
VPC Flow Logs
- ✓
AWS Network Firewall
Why this is correct
Network Firewall can log traffic that passes through it.
Related concept
VPC Flow Logs
- ✗
AWS CloudTrail
Why it's wrong here
CloudTrail logs API activity, not network traffic.
Common exam traps
Common exam trap: answer the scenario, not the keyword
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
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- VPC Flow Logs
- Traffic Mirroring
- AWS Network Firewall
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
VPC Flow Logs
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
Review vPC Flow Logs, then practise related ANS-C01 questions on the same topic to reinforce the concept.
- →
Network Security, Compliance and Governance — study guide chapter
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FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Security, Compliance and Governance — This question tests Network Security, Compliance and Governance — VPC Flow Logs.
What is the correct answer to this question?
The correct answer is: Traffic Mirroring — Option B is correct because Traffic Mirroring captures and inspects traffic. Option C is correct because VPC Flow Logs capture IP traffic information. Option D is correct because AWS Network Firewall can log traffic. Option A is wrong because AWS Config monitors resource configurations, not traffic. Option E is wrong because CloudTrail logs API calls, not network traffic.
What should I do if I get this ANS-C01 question wrong?
Review vPC Flow Logs, then practise related ANS-C01 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
VPC Flow Logs
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
3 more ways this is tested on ANS-C01
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 wants to audit all network traffic to and from EC2 instances for security analysis. Which AWS service should they enable?
easy- ✓ A.VPC Flow Logs
- B.Amazon GuardDuty
- C.AWS CloudTrail
- D.AWS Config
Why A: VPC Flow Logs capture information about IP traffic going to and from network interfaces in a VPC, making them the correct choice for auditing network traffic. Option A 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 2. 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?
hard- ✓ A.VPC Traffic Mirroring
- B.VPC Flow Logs
- C.AWS CloudTrail
- D.Amazon GuardDuty
Why A: Option A (VPC Traffic Mirroring) is correct because it captures and copies all outbound network traffic, including full packets, for compliance analysis. Option B (VPC Flow Logs) is incorrect because it only logs metadata (e.g., IP addresses, ports, protocols) but not the full packet content. Option C (AWS CloudTrail) is incorrect because it logs API calls and management events, not network traffic. Option D (Amazon GuardDuty) is incorrect because it is a threat detection service that analyzes traffic for anomalies, but it does not log all traffic for auditing purposes.
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?
easy- ✓ A.VPC Flow Logs
- B.AWS Config
- C.Amazon CloudWatch Logs
- D.AWS CloudTrail
Why A: Option A is correct because VPC Flow Logs capture IP traffic information for network interfaces in a VPC, allowing auditing of all network traffic. Option B is wrong because AWS Config records resource configuration changes, not network traffic. Option C is wrong because Amazon CloudWatch Logs can store and monitor logs but does not capture network traffic. Option D is wrong because AWS CloudTrail records API calls, not network traffic.
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Last reviewed: Jun 20, 2026
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