Chapter 1: Introduction to Microservices

Questions:

1. What is the definition of a microservice?
2. List three reasons why microservices can be helpful.
3. List three reasons not to choose microservices.
4. List four differences between a monolith and microservices.

Answers:

1. A microservice is a small business unit operating as independently as possible.
2. Three reasons:
   1. Independently scalable
   2. Independently maintainable
   3. Decreased complexity
3. Three reasons:
   1. Too small for a project (only one microservice).
   2. Not enough time or resources available to convert all legacy code.
   3. Increased initial work.
4. Four differences:
   1. A monolith has one code base; each microservice has its own.
   2. Monoliths usually operate with only one database; each microservice has its own database.
   3. Monoliths are hard to scale as the entire service must be scaled, while microservices can be scaled individually.
   4. Monoliths...