Google Professional Cloud Developer Question 291
Select 3Google Cloud PlatformYou are tasked with load testing a new e-commerce application deployed on Google Cloud. The application is hosted on a Google Kubernetes Engine (GKE) cluster behind a Cloud Load Balancer. Which of the following considerations should you make to ensure an effective load testing process?
- A
Simulate realistic user behavior and traffic patterns during the load test.
- B
Direct all test traffic to a single pod in the GKE cluster to measure its maximum capacity.
- C
Monitor application metrics such as CPU usage, memory usage, and response times during the test.
- D
Perform the load test on the production environment without any safeguards to observe real-world performance.
- E
Gradually increase the load during the test to identify the system's breaking point and bottlenecks.
Show answer and explanation
Correct answers: A, C, E
Explanation
Effective load testing involves simulating realistic traffic patterns, monitoring metrics to identify potential bottlenecks, and incrementally increasing the load to measure the system's capacity. Missteps like testing on production without safeguards or focusing on a single pod can lead to inaccurate results and potential disruptions.
- A. Correct.
Simulating realistic user behavior and traffic patterns ensures that the load test is representative of actual usage and helps identify real-world issues.
- B. Incorrect.
Directing all test traffic to a single pod is not a good practice as it doesn't reflect the distributed nature of a GKE deployment and can skew results.
- C. Correct.
Monitoring application metrics during the test is crucial for identifying performance bottlenecks and resource constraints.
- D. Incorrect.
Performing a load test on the production environment without safeguards is risky and can disrupt real users. A separate environment or safeguards (e.g., traffic isolation) should be used.
- E. Correct.
Gradually increasing the load helps identify performance thresholds and bottlenecks in a controlled manner.