Google Professional Cloud Network Engineer Question 720
Single answerGoogle Cloud PlatformYou are a Cloud Network Engineer managing the network infrastructure for your organization in Google Cloud. You have configured a Cloud VPN tunnel between your on-premises network and your VPC. Recently, users reported intermittent connectivity issues. To troubleshoot, you want to monitor the metrics of the Cloud VPN to identify the root cause. Which metric should you prioritize to determine if the VPN tunnel is unstable or experiencing packet loss?
- A
Tunnel uptime
- B
Bytes received
- C
Dropped packets
- D
Round-trip latency
Show answer and explanation
Correct answer: C
Explanation
To troubleshoot connectivity issues in a Cloud VPN tunnel, monitoring dropped packets is crucial as it directly indicates packet loss and potentially unstable connections. While other metrics like tunnel uptime, bytes received, or latency provide valuable insights, they do not specifically identify packet loss, making 'Dropped packets' the correct answer.
- A. Incorrect.
Tunnel uptime is useful to determine if the VPN tunnel is operational but does not directly help identify packet loss or instability.
- B. Incorrect.
Bytes received can provide information about traffic volume but does not indicate network performance issues like packet loss.
- C. Correct.
Dropped packets is the most relevant metric to determine if the VPN tunnel is unstable or experiencing packet loss, as it directly correlates to connectivity issues.
- D. Incorrect.
Round-trip latency helps measure network delay but does not directly indicate packet loss or instability.