System design

Question 1

Name some advantages of micro services (4 items)

Answer 1

• Technology diversity, e., Microservices can mix easily with other frameworks, libraries, and databases
• Fault isolation, e., a process failure should not bring the whole system down.
• Greater support for smaller and parallel team
• Independent deployment
• loosely coupled architecture
• increase scalability - one service that needs more tps can be deployed on more instances

Question 2

Micro service vs monolithic architectures

Answer 2

• Micro services focus product, monolithic focus on project
• micro service loosely coupled, monolithic tightly coupled
• data models are separate in micro service

Question 3

Define micro service architecture (2 items)

Answer 3

• application is developed as a collection of services
• provides the framework to develop, deploy, and maintain the service independently

Question 4

Advantages of monolithic service

Answer 4

• less latency - since calls are local
• less complication for cross cutting concerns - easier to implement workflows that involve different components
• easier in terms of development and monitoring