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Microservices are useful when you need independent scaling, deployment, and clear boundaries in software design.

gRPC allows efficient communication between services using a structured request-response model.

Dependency failures can disrupt applications, but resilience patterns can help manage them.

Graceful degradation allows apps to function partially during service failures.

Distributed backpressure helps manage the flow of work between services to prevent overload.

Synchronous communication waits for a response, while asynchronous continues without waiting.

Cascading failures occur when one service's failure impacts others, causing widespread issues.

RPC allows one service to call a function in another service over the network.

Partial failure means some services fail while others keep running, impacting system reliability.

The Circuit Breaker pattern controls service calls to prevent failures from spreading.