MERN Full Stack Development Day 3 Quiz

What is an API in web development?

• A user interface for designing web pages

• A gateway that allows communication between a client and a server

• A tool used for styling web applications

• A database management system

What happens when you search something on Google?

• The browser directly retrieves data without using a backend

• The client request is sent to Google's backend servers, which process the request and return results

• The search engine runs locally without connecting to the internet

• The URL entered is stored but not processed

What protocol is commonly used for web applications?

• FTP

• SMTP

• HTTP/HTTPS

• SSH

Why do we use HTTPS instead of HTTP?

• HTTPS is faster than HTTP

• HTTPS encrypts data to prevent interception

• HTTPS removes the need for a server

• HTTPS allows users to access websites without an internet connection

What identifies a computer on the internet?

• Its hostname

• Its IP address

• Its operating system

• Its browser type

Why do we use domain names instead of IP addresses?

• Domain names are easier to remember than numeric IP addresses

• IP addresses are not used in networking

• A domain name provides extra security

• IP addresses are too slow to use

What does a URL contain?

• Only the domain name

• The protocol, domain/IP, and the resource path

• The programming language used to build the website

• The browser name

What is the role of a function in programming?

• It groups a block of code to perform a specific task

• It only prints output to the screen

• It stores database information

• It replaces the need for operating systems

What is required to execute a JavaScript program?

• A JavaScript runtime like Node.js

• A C++ compiler

• A database

• A virtual machine

What is the main advantage of breaking a program into multiple functions?

• It makes the program modular and reusable

• It slows down execution

• It prevents the use of variables

• It makes debugging more difficult