Lecture 6 - Architecture Styles II

Question 1

What is Microkernel Architecture?

Answer 1

• Separates CORE FUNCTIONALITY (microkernel) from additional services / functionalities
• Ex: microkernel provides communication, process management, file systems, etc
• Ex: Operating systems

Question 2

Key Components of the Microkernel Architecture?

Answer 2

Microkernel
- Core component to provide essential services

Plug-Ins
- Additional operations running separately (like file systems, device drivers)

Clients
- User-level processes that interact with microkernel and plugins based on client request

Question 3

What is Microservice Architecture?

Answer 3

• Independent, self contained services that communicate through APIs
• Individual services can scale individually, very flexible

Question 4

Key Components of Microservice Architecture?

Answer 4

Client Apps (Web + Mobile)
- user-facing interfaces (web / mobile apps)
- Communicate with backend microservice through APIs
API Gateway
- Single entry point for client requests.
- Routes them to the appropriate microservice

Microservice
- Manages independent operations

Database
- Each microservice has its own dedicated database

Question 5

What is Event-Driven Architecture?

Answer 5

• System flow is triggered by EVENTS like user actions, sensor inputs, or messages.
• Actions in response to specific events rather than executing tasks sequentially.
• Asynchronous communication between services