Your website is deployed on Compute Engine. Your marketing team wants to test conversion rates between 3 different website designs. Which approach should you use?

Question

Options

• ADeploy the website on App Engine and use traffic splitting.
• BDeploy the website on App Engine as three separate services.
• CDeploy the website on Cloud Functions and use traffic splitting.
• DDeploy the website on Cloud Functions as three separate functions.

• A
  82% (46)
• B
  5% (3)
• C
  2% (1)
• D
  11% (6)

Explanation

App Engine's traffic splitting feature allows you to distribute incoming requests across multiple deployed versions of your application by percentage. To A/B/C test three different website designs, you deploy each design as a separate version in App Engine and configure traffic splitting to route a portion of user traffic to each version. This is the canonical GCP approach for conversion rate testing because it seamlessly routes real users to different versions without requiring any client-side logic. Option B deploys three separate services, but services are independent applications - this doesn't support percentage-based traffic splitting across the designs. Cloud Functions (Options C and D) are designed for event-driven, stateless functions and do not natively support traffic splitting between versions.

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