フリー問題

問題文

Design the sequence for replacing the model behind a production online endpoint with minimal risk. Which order is correct?

選択肢

1. Create the new deployment with all traffic, then test it and roll back if needed
2. Create the new deployment with no traffic, invoke it by name to test, mirror a portion of live traffic, allocate a small percentage, increase gradually, then remove the old deployment
3. Remove the old deployment, then create the new one so there is no ambiguity
4. Create the new deployment and immediately allocate 50 percent to compare the two, so that the two deployments receive statistically comparable traffic and the difference between them can be measured on real requests from the start