Git And GitHub

Which of the following is the database commonly used in backend development?

• HTML
• MongoDB
• CSS
• JavaScript
• None

Answer explanation

MongoDB is a widely used NoSQL database in backend development, especially for applications that require flexible data models.

Which middleware function is commonly used for serving static files in an Express.js application?

• Express.static()
• Express.json()
• Express.urlencoded()
• Express.cookieParser()
• None

Answer explanation

Express.static() is a built-in middleware function in Express.js that serves static files such as images, CSS files, and JavaScript files.

What is the purpose of nodemon?

• To monitor code changes
• To install Express globally
• To execute a nodemon server
• To initialize a new Node.js project globally
• None

Answer explanation

Nodemon is a utility that monitors changes in your source code and automatically restarts your Node.js application, making development easier.

What is GitHub used for in relation to Git?

• Playing online games
• Hosting virtual meetings
• Collaborating on code and storing repositories online
• Sending emails
• None

Answer explanation

GitHub is a platform that hosts Git repositories online, enabling collaboration among developers on code projects.

Express.js is a framework for which runtime environment?

• Python
• Node.js
• Ruby on Rails
• Django
• None

Answer explanation

Express.js is a web framework specifically designed for the Node.js runtime environment, facilitating server-side development.

How does Express simplify handling different routes?

• By directly mapping request URLs to specific functions without any additional configuration.
• By automatically generating routes based on file names or structure within the project.
• By providing a clear and organized way to define routes, middleware, and error handling, reducing code complexity.
• By offering a built-in routing system that only understands basic GET and POST requests.
• None

Answer explanation

Express provides a structured way to define routes and middleware, making it easier to manage and organize code, thus reducing complexity.

What is a remote repository in Git?

• A repository hosted on a server
• A local repository
• A repository on GitHub
• A repository on Bitbucket
• None

Answer explanation

A remote repository is hosted on a server, allowing multiple users to collaborate on the same project from different locations.

What does API stand for?

• Application Print Interface
• Advanced Programming Interface
• Application Programming Interface
• Advanced Print Interface
• None

Answer explanation

API stands for Application Programming Interface, which defines the methods and data formats that applications can use to communicate with each other.

What is the purpose of an API in backend development?

• Storing user profiles
• Interfacing with other applications
• Styling websites
• Handling HTTP requests
• None

Answer explanation

APIs in backend development serve as an interface for different applications to communicate, allowing for data exchange and functionality sharing.

What is the purpose of a local repository in Git?

• To store code in the cloud
• To collaborate with teammates
• To control versions of code on your machine
• To download code from the internet
• None

Answer explanation

A local repository in Git allows you to control versions of your code on your own machine, enabling you to work offline and manage your changes locally.