ANS-C01 Network Management and Operations Practice Question
A company has a VPC with a VPN connection to an on-premises network. The network team reports that the VPN tunnel is flapping intermittently. You need to identify the cause. Which AWS service provides logs that can help troubleshoot the VPN tunnel status?
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
✓
Amazon CloudWatch
Amazon CloudWatch provides VPN tunnel metrics, including tunnel state, data in/out, and other status indicators that help identify the cause of flapping. Option A (VPC Flow Logs) captures IP traffic but not tunnel status. Option C (AWS CloudTrail) logs API calls, not tunnel status. Option D (AWS Health Dashboard) shows service health events but not detailed tunnel status.
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 it's wrong here
VPC Flow Logs capture IP traffic information for network interfaces, but they do not provide VPN tunnel status or metrics. They are useful for analyzing traffic patterns but not for troubleshooting tunnel flapping.
- ✓
Amazon CloudWatch
Why this is correct
Amazon CloudWatch provides metrics for VPN tunnels, including tunnel state, data in/out, and other status indicators. These logs help identify the cause of tunnel flapping.
- ✗
AWS CloudTrail
Why it's wrong here
AWS CloudTrail records API calls made to AWS services, but it does not capture VPN tunnel status. It is used for auditing and governance.
- ✗
AWS Health Dashboard
Why it's wrong here
AWS Health Dashboard provides information about service health events and outages, but it does not provide detailed VPN tunnel status logs. It may show if there is a general issue, but not tunnel-specific flapping.
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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.