A blue-green deployment is set up for a SAS Micro Analytic Service scoring endpoint. The 'green' environment contains the new model version. What is the final atomic step that completes the deployment?
Select an answer to reveal the explanation.
Short Explanation and Infographic
Here's the deal — c is correct because blue-green deployment's defining characteristic is the instantaneous traffic switch at the routing layer (load balancer or API gateway) — all requests atomically redirect from blue to green. Blue remains available for instant rollback.
Full explanation below image
Full Explanation
C is correct because blue-green deployment's defining characteristic is the instantaneous traffic switch at the routing layer (load balancer or API gateway) — all requests atomically redirect from blue to green. Blue remains available for instant rollback. A describes canary/progressive rollout. B describes in-place replacement, not blue-green. D is a model preparation step, not the deployment switch.