Why inter-service communication defines architecture in Microservices - Quick Recap

Recall & Review

beginner

What is inter-service communication in microservices?

It is the way different microservices talk and share data with each other to work together as a system.

beginner

Why does inter-service communication influence system architecture?

Because how services connect and exchange data shapes the system's design, performance, and scalability.

beginner

Name two common methods of inter-service communication.

Synchronous calls (like HTTP/REST) and asynchronous messaging (like message queues).

intermediate

How does synchronous communication affect system design?

It creates tight coupling and can cause delays if one service is slow or down, affecting overall system responsiveness.

intermediate

What is a benefit of asynchronous communication in microservices?

It allows services to work independently and improves system resilience and scalability by decoupling service interactions.

Which communication style can cause a service to wait for another to respond?

A Broadcast communication

B Synchronous communication

C Event-driven communication

D Asynchronous communication

Synchronous communication requires the caller to wait for the response before continuing.

What is a key architectural impact of inter-service communication?

A It controls the user interface design.

B It decides the programming language used.

C It determines how services are coupled and how data flows.

D It sets the database schema.

Inter-service communication shapes coupling and data flow, which are core to architecture.

Which is NOT a common inter-service communication method?

A Direct database access

B Message queues

C REST API calls

D File system polling

Direct database access between services is discouraged as it breaks service boundaries.

What does asynchronous communication improve in microservices?

A Service downtime

B Tight coupling

C Synchronous blocking

D System resilience

Asynchronous communication decouples services, improving resilience.

Why must inter-service communication be carefully designed?

A To ensure services can scale and handle failures gracefully.

B To reduce the number of services.

C To avoid using APIs.

D To make services dependent on each other.

Good communication design supports scalability and fault tolerance.

Explain how inter-service communication affects microservice architecture.

Think about how services talk and depend on each other.

Describe the benefits and challenges of asynchronous communication between microservices.

Consider how messages flow without waiting.