Introduction to Microservices

What is the key characteristic of a microservices architecture?

• Monolithic application structure

• Small, independent, and loosely coupled services

• Single database for all services

• All services must use the same technology stack

How do microservices typically communicate with each other?

• Direct function calls

• Well-defined APIs using HTTP or messaging queues

• Shared database access

• By copying data to each service manually

Which of the following is NOT an advantage of microservices?

• Scalability

• Independent deployment

• Fault isolation

• Single point of failure

Why is decentralized data management important in microservices?

• It allows services to have their own independent databases

• It centralizes database access for all services

• It reduces network traffic

• It prevents database migrations

What is a challenge of microservices architecture?

• Easier testing and debugging

• Simple deployment process

• Managing communication and dependencies between services

• No need for service coordination

What role does an API Gateway play in a microservices architecture?

• Acts as a single entry point for external clients

• Directly manages databases for all services

• Converts monolithic applications to microservices

• Eliminates the need for service discovery

Which is a benefit of using microservices for large-scale applications?

• Single team manages all services

• Different services can use different technologies

• Services are tightly coupled

• Code duplication is encouraged

Which of the following best describes fault isolation in microservices?

• Failure in one service affects all other services

• Failure in one service is contained and does not affect others

• All services must restart together in case of failure

• Errors are ignored to ensure service availability

What is the main advantage of independent deployment in microservices?

• Changes in one service require updates to all services

• Services can be updated without affecting others

• The entire system must be redeployed for each update

• Deployment is slower compared to monolithic applications

What is the purpose of service discovery in microservices?

• To enable services to dynamically find and communicate with each other

• To manually register services before use

• To store API request logs

• To force all services to use the same IP address