ANS-C01 Network Management and Operations Practice Question
This ANS-C01 practice question tests your understanding of network management and operations. 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 is using AWS Transit Gateway to interconnect multiple VPCs and on-premises networks. The network team wants to log and monitor all traffic flows across the Transit Gateway for security analysis. Which TWO actions should the team take? (Choose TWO.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Send the flow logs to Amazon CloudWatch Logs for monitoring and alerting.
Option B is correct because VPC Flow Logs can be published to Amazon CloudWatch Logs, enabling real-time monitoring, alerting, and integration with AWS Lambda or third-party tools for security analysis. This allows the network team to capture IP traffic information for all flows across Transit Gateway attachments when flow logs are enabled on those attachments. Option C is correct because VPC Flow Logs must be enabled at the Transit Gateway attachment level (not on the Transit Gateway itself) to capture traffic traversing the Transit Gateway, as the Transit Gateway is a network transit hub and does not generate its own flow logs.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Use AWS Config rules to evaluate the Transit Gateway route tables.
Why it's wrong here
AWS Config is for configuration compliance, not traffic monitoring.
✓
Send the flow logs to Amazon CloudWatch Logs for monitoring and alerting.
Why this is correct
CloudWatch Logs can aggregate and analyze flow logs for security monitoring.
Related concept
Read the scenario before looking for a memorised answer.
✓
Enable VPC Flow Logs on each Transit Gateway attachment.
Why this is correct
Flow logs at the attachment level capture all traffic traversing that attachment.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable VPC Flow Logs on the Transit Gateway itself.
Why it's wrong here
Transit Gateway does not support flow logs directly; they must be enabled on attachments.
✗
Configure VPC Traffic Mirroring on the Transit Gateway.
Why it's wrong here
Traffic Mirroring is not supported on Transit Gateway; it works on EC2 instances.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates mistakenly think VPC Flow Logs can be enabled directly on the Transit Gateway itself (Option D), but AWS only supports flow logs on Transit Gateway attachments, not the Transit Gateway as a resource.
Detailed technical explanation
How to think about this question
Transit Gateway attachments (VPC, VPN, Direct Connect Gateway) each have an elastic network interface in the attachment's VPC; enabling VPC Flow Logs on that attachment captures all traffic entering or leaving the Transit Gateway via that attachment. Flow logs record metadata such as source/destination IP, ports, protocol, and packet/byte counts, but not packet payloads, and can be aggregated across attachments for a holistic view. In a real-world scenario, sending these logs to CloudWatch Logs allows the team to set metric filters for suspicious traffic patterns (e.g., port scans) and trigger alarms via CloudWatch Alarms or AWS Lambda for automated response.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Network Management and Operations — This question tests Network Management and Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Send the flow logs to Amazon CloudWatch Logs for monitoring and alerting. — Option B is correct because VPC Flow Logs can be published to Amazon CloudWatch Logs, enabling real-time monitoring, alerting, and integration with AWS Lambda or third-party tools for security analysis. This allows the network team to capture IP traffic information for all flows across Transit Gateway attachments when flow logs are enabled on those attachments. Option C is correct because VPC Flow Logs must be enabled at the Transit Gateway attachment level (not on the Transit Gateway itself) to capture traffic traversing the Transit Gateway, as the Transit Gateway is a network transit hub and does not generate its own flow logs.
What should I do if I get this ANS-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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