Google Professional Cloud Developer Question 308
Select 3Google Cloud PlatformYou are a cloud developer managing a web application hosted on Google Cloud. You want to implement A/B testing for a new feature to compare user engagement between two variations. Which combination of services and techniques would be most appropriate to achieve this?
- A
Use Cloud Load Balancing with traffic splitting to route a percentage of users to each variation.
- B
Store user interaction data in BigQuery for analysis.
- C
Implement A/B testing by deploying both variations in the same instance group without traffic routing.
- D
Use Firebase Remote Config to dynamically control feature availability for different user groups.
- E
Leverage Pub/Sub to send real-time traffic data and decide which variation to display.
Show answer and explanation
Correct answers: A, B, D
Explanation
A/B testing requires controlled traffic splitting, data collection for analysis, and a mechanism to manage feature variations. Cloud Load Balancing enables traffic splitting to direct users to specific variations. BigQuery provides a robust solution for storing and analyzing test results. Firebase Remote Config offers dynamic feature management, making it a perfect fit for implementing A/B testing. Together, these services provide an effective and scalable solution for A/B testing on Google Cloud.
- A. Correct.
Correct. Cloud Load Balancing can split traffic based on percentages, which is ideal for directing users to different variations during an A/B test.
- B. Correct.
Correct. BigQuery is a scalable analytics platform and is well-suited for storing and analyzing large volumes of user interaction data to evaluate the performance of each variation.
- C. Incorrect.
Incorrect. Deploying both variations in the same instance group without any traffic routing makes it impossible to direct specific users to specific variations, which is essential for A/B testing.
- D. Correct.
Correct. Firebase Remote Config allows you to dynamically control feature rollout and user segmentation, making it a powerful tool for managing A/B tests.
- E. Incorrect.
Incorrect. While Pub/Sub is useful for real-time data processing, it is not specifically designed for routing traffic or managing A/B tests.