Mastering MERN Stack Development

Tara is learning web development and comes across a technology stack called MERN. She wants to know what MERN stands for in web development.

• PostgreSQL, Flask, Ember, Ruby

• MongoDB, Express.js, React, Node.js

• MySQL, Angular, Vue.js, Django

• SQLite, Backbone.js, Svelte, ASP.NET

Arjun is working on a project that uses MongoDB for storing user data. He realizes that he has made some mistakes in the setup. Name one common pitfall when working with MongoDB.

• Ignoring security best practices.

• Not properly indexing collections.

• Not using the correct data types.

• Failing to back up the database regularly.

Neha is building a web application using the MERN stack. What is the purpose of Express.js in her project?

• To handle server-side logic and create APIs in the MERN stack.

• To create user interfaces in the MERN stack.

• To handle client-side routing in the MERN stack.

• To manage the database in the MERN stack.

What are some effective ways to handle state updates in a React application?

• Utilize useReducer for complex state logic, and combine it with useContext for global state.

• Store all state in a single component and pass it down through props.

• Only use component lifecycle methods to manage state.

• Rely solely on external APIs for state management.

Eesha is building a web application using the MERN stack. What is the role of Node.js in her project?

• Node.js is used for client-side rendering in the MERN stack.

• Node.js enables server-side JavaScript execution in the MERN stack.

• Node.js is primarily a front-end framework in the MERN stack.

• Node.js is a database management system in the MERN stack.

Rohan is building a MERN application for his school project. What is an effective way for him to manage state in his application?

• Utilize Redux for global state management across the application.

• Store all state in local component state without any global management.

• Use only session storage for managing application state.

• Rely solely on props drilling for state management.

Advait and Ananya are working on a MERN stack project together. What is a common challenge they face when integrating the front-end and back-end?

• Using only HTML and CSS for development.

• Focusing solely on back-end database management.

• Ignoring user authentication requirements.

• Ensuring proper API communication between front-end and back-end.

Tisha is working on a React application for her school project. She wants to ensure that the app runs smoothly and efficiently. How can she optimize performance in her React application?

• Use techniques like code splitting, React.memo, useCallback, useMemo, and lazy loading.

• Use inline styles for all components

• Increase the number of components in the application

• Avoid using hooks for state management

What is the significance of using middleware in Express.js?

• Middleware is only used for logging requests.

• Middleware is not necessary for routing in Express.js.

• Middleware is significant in Express.js for handling requests, modifying request/response objects, and organizing application logic.

• Middleware can only be used for error handling.

Explain the importance of RESTful APIs in full stack development.

• RESTful APIs slow down communication between front-end and back-end.

• RESTful APIs enable efficient communication between front-end and back-end, promoting scalability and maintainability in full stack development.

• RESTful APIs are only used for mobile applications.

• RESTful APIs are not necessary for front-end development.