Deployment testing · Question 49 of 60

A team only wants to check the rollback once a deployment has actually failed. What is there to say about this?

1 answer is correct. Hard

1. A A prior canary test replaces rollback testing, since it detects regressions early
2. B That is correct, because rollback tests only deliver meaningful results after a failure
3. C Rollback testing must take place before deployment to confirm rollback readiness
4. D Rollback tests are not intended for ML systems, because models are not reverted