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Stateless servers are easier to scale because they don't store user session data locally.

gRPC supports four communication patterns: Unary, Server Streaming, Client Streaming, and Bidirectional Streaming.

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

The TCP 3-way handshake ensures reliable connection establishment between a client and server.

Microservices can communicate using five key patterns based on their needs.

Consistency models determine what data reads in distributed systems can see.

Database per Service ensures each microservice owns its data, reducing dependencies.

Choosing the right boundaries for microservices is crucial for effective architecture.

Distributed locks ensure only one server performs a task, avoiding duplication.

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

The Transactional Outbox Pattern ensures database updates and event publishing are synchronized to avoid losing events.

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

Choosing between a shared database and a database per service affects system design significantly.

REST, RPC, and gRPC are different methods for communication in software systems.