Exploring Microservices in Node.js

What is a microservices architecture?

• A microservices architecture is a design pattern where an application is composed of small, independent services that communicate over a network.

• A microservices architecture is a method for creating static web pages.

• A microservices architecture is a type of database management system.

• A microservices architecture is a single, monolithic application.

List two advantages of using microservices.

• 1. Independent deployment and scaling. 2. Technology diversity across services.

• Limited technology choices for all services.

• Increased monolithic architecture complexity.

• Easier debugging and maintenance.

How do you install Node.js on your machine?

• Download the installer from the Node.js website and follow the installation instructions.

• Run the command 'npm install node' in the terminal.

• Use a package manager like Homebrew without any additional steps.

• Copy the Node.js files from another machine directly into your system.

What is NPM and what role does it play in Node.js?

• NPM is a package manager for Node.js that manages dependencies and facilitates the installation and sharing of packages.

• NPM is a web server for hosting Node.js applications.

• NPM is a database management system for Node.js.

• NPM is a programming language used in Node.js.

Explain the purpose of the Seneca toolkit in microservices.

• To replace traditional monolithic architectures with serverless functions.

• The purpose of the Seneca toolkit in microservices is to facilitate the development, management, and scaling of microservices by providing a structured framework.

• To provide a database management system for microservices.

• To serve as a front-end framework for user interfaces.

What does Inversion of Control (IOC) mean in the context of microservices?

• Inversion of Control (IoC) refers to the manual management of object lifecycles in microservices.

• Inversion of Control (IoC) is a design pattern that eliminates the need for frameworks in microservices.

• Inversion of Control (IoC) means that services are tightly coupled and depend on each other for functionality.

• Inversion of Control (IoC) means delegating the control of object creation and management to a framework in microservices.

Describe the concept of pattern matching in Seneca.

• Pattern matching in Seneca is used for data storage optimization.

• Pattern matching in Seneca refers to a visual design technique.

• Pattern matching in Seneca is a method for creating user interfaces.

• Pattern matching in Seneca is a mechanism for routing messages based on their structure and content.

How can you reuse patterns in a microservices application?

• Implement shared libraries, use API gateways, and adopt design patterns.

• Use a monolithic architecture

• Implement synchronous communication only

• Avoid using any libraries

What are plugins in Seneca and why are they useful?

• Plugins are mandatory for all Seneca applications.

• Plugins in Seneca are reusable components that extend its functionality, making development easier and more modular.

• Plugins in Seneca are used to create user interfaces.

• Plugins in Seneca are only for database management.

How do you integrate a web server with a microservice?

• Use a database to store microservice data directly.

• Integrate a web server by using only WebSocket connections.

• Deploy the microservice on a different server without any connection.

• Integrate a web server by defining routes that communicate with the microservice using HTTP methods.