Practice Test 1 | Designing and Implementing Microsoft DevOps Solutions | AZ-400 | Dumps | Mock Test
A company wants to deploy a web-based application onto Azure. The application is going to be hosted on a set of Azure virtual machines located in different regions. They want to implement a strategy of Blue-Green deployment for all future application updates. You also want to implement an Azure DNS load balancing solution to implement Blue-Green deployments.
Which of the following would be implemented as a feature to enable Blue-Green Deployments?
A. Automatic updates
B. Rolling updates
C. Weighted round-robin routing method
D. Priority routing method
Answer – C
When you are implementing the Azure Traffic Manager as the DNS routing service, you can use the Weighted round-robin routing method for implementing Blue-Green deployments.
Option A is incorrect because, with automatic updates, all endpoints will be updated to the latest version either at the same time or after a small gap which is against the blue-green deployment.
Option B is incorrect because there is no environment isolation between the old and new application versions in a rolling deployment.
Option C is CORRECT because the Weighted round-robin routing method is used for achieving blue-green deployment with Azure Traffic Manager.
Option D is incorrect because in the case of the priority routing method we have a primary service endpoint for all traffic, so it is not possible to have two versions of the application at a point in time and all traffic will always be routed to the endpoint with the highest priority.
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