Why microservices exist - Quick Recap

Recall & Review

beginner

What is the main reason microservices architecture was introduced?

Microservices were introduced to break down large, complex applications into smaller, independent services that can be developed, deployed, and scaled separately.

beginner

How do microservices improve scalability compared to monolithic systems?

Microservices allow scaling only the parts of the application that need more resources, rather than scaling the entire application as a whole.

intermediate

Why is independent deployment important in microservices?

Independent deployment lets teams update or fix one service without affecting the entire system, reducing downtime and speeding up releases.

intermediate

What problem does microservices solve related to team organization?

Microservices allow different teams to own different services, enabling parallel development and reducing coordination overhead.

intermediate

How do microservices help with technology diversity?

Each microservice can use the best technology or programming language for its specific task, unlike monolithic apps that usually use one tech stack.

What is a key benefit of microservices over monolithic architecture?

A Less network communication

B Single codebase for all features

C Simpler deployment process

D Independent scaling of components

Microservices allow each component to scale independently, unlike monolithic systems which scale as a whole.

Why do microservices enable faster development cycles?

A Because services can be deployed independently

B Because all teams work on the same codebase

C Because microservices require fewer tests

D Because microservices use less code

Independent deployment means teams can release updates without waiting for the entire system to be ready.

Which problem is NOT directly solved by microservices?

A Reducing application complexity by splitting it

B Allowing different teams to work independently

C Eliminating the need for databases

D Supporting multiple technologies in one system

Microservices do not eliminate databases; each service may still use its own database or data store.

How do microservices affect fault isolation?

A Faults in one service can crash the entire system

B Faults are isolated to individual services

C Faults are harder to detect

D Faults are ignored by other services

Microservices isolate faults so a failure in one service does not bring down the whole system.

What is a common challenge introduced by microservices?

A Managing inter-service communication

B Writing code in one language

C Deploying a single executable

D Having a single database schema

Microservices require managing communication between services, which adds complexity.

Explain why microservices architecture was created and what problems it solves compared to monolithic systems.

Think about challenges in big apps and how splitting helps.

Describe the benefits and challenges of using microservices in software design.

Consider both what microservices improve and what new problems they bring.