Google Professional Cloud DevOps Engineer Question 109
Select 3Google Cloud PlatformYour team is managing a highly available e-commerce website hosted on Google Cloud. During a major sale event, you discover a performance degradation issue caused by a sudden increase in traffic, leading to higher latency and intermittent errors for users. Your primary goal is to mitigate the impact on users while continuing to investigate the root cause. Which of the following actions should you take immediately to reduce user impact?
- A
Implement a traffic-splitting strategy to redirect a portion of traffic to a backup environment.
- B
Scale up your backend services to handle the increased load.
- C
Roll back to a previous stable version of the application.
- D
Enable caching for frequently accessed data to reduce backend load.
- E
Use Google Cloud Armor to block all incoming traffic temporarily while investigating the issue.
Show answer and explanation
Correct answers: A, B, D
Explanation
To mitigate the impact of increased traffic on users, actions such as traffic redirection, scaling backend services, and enabling caching provide immediate relief by either reducing the load on the system or optimizing resource use. Blocking all traffic or rolling back without evidence of deployment-related issues are not optimal strategies in this scenario.
- A. Correct.
Redirecting a portion of traffic to a backup environment can reduce load on the primary environment, thus mitigating user impact.
- B. Correct.
Scaling up backend services adds more resources to handle traffic spikes, reducing latency and errors for users.
- C. Incorrect.
Rolling back may not be the best immediate action unless the degradation is caused by a recent deployment. The issue here is traffic-related, so scaling and optimization are higher priorities.
- D. Correct.
Enabling caching can significantly reduce backend load by serving repeated requests from a faster cache layer, improving performance for users.
- E. Incorrect.
Blocking all incoming traffic completely would disrupt access for all users, which is not an appropriate mitigation strategy for minimizing user impact.