Google Professional Cloud Network Engineer Question 770
Select 4Google Cloud PlatformYour organization has deployed a global web application on Google Cloud. Users are reporting intermittent connectivity issues, including high latency and packet loss. You want to identify the source of the problem using the Performance Dashboard in the Google Cloud Console. Which of the following actions should you take to effectively diagnose the issue?
- A
Use the Google Cloud Performance Dashboard to check the latency and packet loss between Google Frontends (GFEs) and your application backends.
- B
Analyze the Google-wide network latency and packet loss trends to identify if there is a broader issue affecting your region.
- C
Filter the Performance Dashboard views by time periods that correspond to when users experienced issues.
- D
Enable VPC Flow Logs to further analyze per-instance network traffic and integrate the data into the Performance Dashboard.
- E
Compare the Performance Dashboard metrics for different Google Cloud regions to determine if the issue is region-specific.
Show answer and explanation
Correct answers: A, B, C, E
Explanation
The Performance Dashboard in the Google Cloud Console is a valuable tool for diagnosing network issues like latency and packet loss. By analyzing metrics between GFEs and backends, checking Google-wide trends, filtering by time periods, and comparing regional metrics, you can effectively identify the root cause of connectivity problems. While VPC Flow Logs are useful for other types of network analysis, they are not integrated with the Performance Dashboard and are not directly relevant in this scenario.
- A. Correct.
Correct. The Performance Dashboard provides metrics for connections between GFEs and backends. Analyzing this data helps identify issues specific to your application.
- B. Correct.
Correct. Checking Google-wide network latency and packet loss trends can reveal if the issue stems from Google's network infrastructure rather than your application.
- C. Correct.
Correct. Filtering by the time periods users reported issues ensures you are analyzing relevant data, making your diagnosis more effective.
- D. Incorrect.
Incorrect. While VPC Flow Logs offer useful insights at the VPC level, they are not directly integrated with the Performance Dashboard. This action is outside the scope of the Performance Dashboard.
- E. Correct.
Correct. Comparing metrics across regions can help isolate whether the issue is specific to a region or global.