Refer to the Exhibit

Multiple Choice

Refer to the exhibit. The application follows a containerized microservices architecture that has one container per microservice. The microservices communicate with each other by using REST APIs. The double-headed arrows in the diagram display chains of synchronous HTTP calls needed for a single user request. Which action ensures the resilience of the application in the scope of a single user request?

A) Implement retries with exponential backoff during HTTP API calls.
B) Set up multiple instances of each microservice in active/active mode by using the Orchestrator.
C) Redesign the application to be separated into these three layers: Presentation, API, and Data.
D) Create two virtual machines that each host an instance of the application and set up a cluster.