ANS-C01 Network Management and Operations Practice Question
A company has a multi-account AWS environment using AWS Transit Gateway with multiple VPC attachments. The network team wants to centralize logging of all network traffic crossing the Transit Gateway. Which TWO services can be used together to achieve this?
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 published to a central Amazon S3 bucket
VPC Flow Logs can be published to a central Amazon S3 bucket, aggregating traffic logs from different VPCs attached to the Transit Gateway. Option D is correct because AWS Transit Gateway Network Manager allows centralized monitoring and can integrate flow logs. Option B is incorrect because Site-to-Site VPN does not generate its own flow logs; VPN traffic is captured by VPC Flow Logs on the VPN attachment. Option C is incorrect because Direct Connect Gateway does not have flow logs; traffic is logged via VPC Flow Logs on the virtual interfaces. Option E is incorrect because AWS CloudTrail records API actions, not 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 published to a central Amazon S3 bucket
Why this is correct
VPC Flow Logs capture traffic; publishing to a central S3 bucket allows aggregation.
- ✗
AWS Site-to-Site VPN flow logs
Why it's wrong here
VPN flow logs are not a service; VPN traffic is logged via VPC Flow Logs.
- ✗
AWS Direct Connect Gateway flow logs
Why it's wrong here
Direct Connect does not provide flow logs for Transit Gateway.
- ✓
AWS Transit Gateway Network Manager
Why this is correct
Network Manager can collect and centralize flow logs from multiple VPCs.
- ✗
AWS CloudTrail for Transit Gateway events
Why it's wrong here
CloudTrail records API calls, not network traffic flows.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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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.