How would you handle a practical scenario involving Synchronous Communication in Microservices Architecture?

For a practical scenario involving Synchronous Communication, I would first clarify the business goal, scale, constraints, and the failure or quality attribute being tested. Synchronous communication uses request-response protocols such as HTTP or gRPC between services. The scenario centers on an API depends on three downstream services; explain how you would control timeout budgets, retries, and failure propagation. For production, keep call chains short, define timeouts, retries only for safe operations, circuit breaking, fallbacks where meaningful, and observable correlation across calls. I would then compare the main alternatives and tradeoffs, identify likely failure modes, and explain how I would validate the solution through testing, observability, security controls, and recovery or rollback planning.