Google Professional Cloud Network Engineer Question 771
Select 4Google Cloud PlatformYou are a network engineer managing a multi-region application hosted on Google Cloud. Users have recently reported intermittent latency and packet loss when accessing the application. You decide to use the Network Performance Dashboard to investigate the issue. Which of the following steps should you take to identify the source of the problem?
- A
Review the Google-wide metrics for packet loss and latency to identify any global disruptions.
- B
Drill down into the metrics for specific regions to check for localized network issues.
- C
Enable VPC Flow Logs on all subnets to view detailed traffic flows in the Network Performance Dashboard.
- D
Use the metrics to compare the performance of different Google Cloud zones serving your application.
- E
Check the Network Performance Dashboard for historical trends to pinpoint when the issue began.
Show answer and explanation
Correct answers: A, B, D, E
Explanation
The Network Performance Dashboard provides visibility into Google-wide and region-specific metrics for latency and packet loss, which are key to identifying the source of network performance issues. By reviewing global and regional metrics, comparing performance across zones, and analyzing historical trends, you can narrow down the cause of the problem. However, enabling VPC Flow Logs is not a relevant step for using the Network Performance Dashboard specifically.
- A. Correct.
Reviewing Google-wide metrics is important to determine if there are any global disruptions across Google's network that might be impacting your application.
- B. Correct.
Drilling down into region-specific metrics helps you identify localized issues that may not be visible in global metrics.
- C. Incorrect.
VPC Flow Logs are not directly integrated into the Network Performance Dashboard. While they can provide useful traffic flow information, they are not required for using the dashboard itself.
- D. Correct.
Comparing the performance of different zones can help identify if specific zones are experiencing higher latency or packet loss compared to others.
- E. Correct.
Historical trends in the Network Performance Dashboard can provide insights into when the issue began, which can be critical to understanding and resolving the problem.