Google Cloud Professional Cloud Developer — Question 213

You are using the Cloud Client Library to upload an image in your application to Cloud Storage. Users of the application report that occasionally the upload does not complete and the client library reports an HTTP 504 Gateway Timeout error. You want to make the application more resilient to errors. What changes to the application should you make?

Answer options

• A. Write an exponential backoff process around the client library call.
• B. Write a one-second wait time backoff process around the client library call.
• C. Design a retry button in the application and ask users to click if the error occurs.
• D. Create a queue for the object and inform the users that the application will try again in 10 minutes.

Correct answer: A

Explanation

Option A is correct because implementing an exponential backoff process can effectively handle intermittent errors by gradually increasing the wait time between retries, reducing server load. Options B and C provide less effective solutions, as a fixed wait time may not be sufficient for network issues, and relying on users to retry can lead to frustration. Option D introduces unnecessary complexity and delays the process without improving the resilience of the application.