Web Development Quizzes: Test Your Skills in HTML, CSS, JavaScript, and PHP

Question 1

Which JavaScript data type represents a logical value?

Accepted Answer

Boolean

Answer

String

Answer

Number

Answer

Object

Question 2

What is the main difference between a GET and a POST request in PHP?

Accepted Answer

GET requests are used to retrieve data, while POST requests are used to send data

Answer

GET requests are secure, while POST requests are not

Answer

POST requests are used to retrieve data, while GET requests are used to send data

Answer

There is no difference between GET and POST requests

Question 3

What is the primary function of a web server?

Accepted Answer

To store and serve web pages

Answer

To handle user requests

Answer

To ensure data security

Answer

To perform database operations

Question 4

Which of the following is NOT a valid CSS unit?

Accepted Answer

lb

Answer

px

Answer

em

Answer

vh

Question 5

How do CSS inheritance and cascading differ?

Accepted Answer

Inheritance is the passing of properties from parent to child elements, while cascading resolves conflicts between properties

Answer

Cascading is the passing of properties from child to parent elements, while inheritance resolves conflicts between properties

Answer

Inheritance and cascading are the same thing

Answer

There is no difference between inheritance and cascading

Question 6

What is JavaScript primarily used for on a web page?

Accepted Answer

Making the page interactive and responsive to user actions

Answer

Creating the page's structure and content

Answer

Ensuring the page looks the same in different browsers

Answer

Storing data and performing calculations on the server

Question 7

Identify the HTML element that is NOT considered semantic:

Accepted Answer

div

Answer

header

Answer

article

Answer

figure

Question 8

In JavaScript, which data type is suitable for representing an ordered set of values?

Accepted Answer

Array

Answer

Object

Answer

String

Answer

Number

Question 9

Which variable scope in PHP permits access to all functions and variables within the script?

Accepted Answer

global

Answer

$global

Answer

all

Answer

public

Question 10

When attempting to retrieve data from a server, which HTTP method should be employed?

Accepted Answer

GET

Answer

POST

Answer

PUT

Answer

DELETE

Question 11

Which CSS selector targets all elements carrying the class name 'container'?

Accepted Answer

.container

Answer

#container

Answer

container

Answer

.#container

Question 12

In JavaScript, which function is utilized to attach an event listener to an element?

Accepted Answer

addEventListener

Answer

attachEvent

Answer

bindEvent

Answer

onEvent

Question 13

To establish a relationship between a form element and its label in HTML, which attribute is used?

Accepted Answer

for

Answer

label

Answer

id

Answer

name

Question 14

Which CSS property is responsible for setting the background color of an element?

Accepted Answer

background-color

Answer

color

Answer

bg-color

Answer

bgcolor

Question 15

What is the primary purpose of the <head> element in an HTML document?

Accepted Answer

To contain metadata about the page, such as its title and description.

Answer

To define the primary content of the page.

Answer

To establish the layout and structure of the page.

Answer

To define the navigation menu for the page.

Question 16

Which CSS property is used to specify the size of text within an element?

Accepted Answer

font-size

Answer

font

Answer

font-family

Answer

font-weight

Question 17

What is the main purpose of a variable in JavaScript?

Accepted Answer

To store data that can be manipulated within a program.

Answer

To define a function that can be called within a program.

Answer

To control the flow of execution within a program.

Answer

To create an object that encapsulates data and methods.

Question 18

What is the primary function of the $_GET variable in PHP?

Accepted Answer

To retrieve data submitted through an HTTP GET request.

Answer

To retrieve data submitted through an HTTP POST request.

Answer

To store the current URL of the page.

Answer

To store the user's IP address.

Question 19

Which JavaScript function returns the first index of a substring within a string?

Accepted Answer

indexOf()

Answer

search()

Answer

find()

Answer

match()

Question 20

What PHP command is used to create a database connection?

Accepted Answer

mysqli_connect()

Answer

connect_db()

Answer

mysql()

Answer

db_connect()

Question 21

Which of the following is a best practice for writing responsive web pages?

Accepted Answer

Use flexible layouts and media queries

Answer

Avoid using images

Answer

Use tables for layout

Answer

Set fixed widths for all elements

Question 22

What is the purpose of the HTTP status code 404?

Accepted Answer

Not Found

Answer

OK

Answer

Moved Permanently

Answer

Forbidden

Question 23

What is the main purpose of a web browser?

Accepted Answer

To render web pages

Answer

To play games

Answer

To send email

Answer

To store files

Question 24

Which HTML element is used to create a link to another web page?

Accepted Answer

<a>

Answer

<link>

Answer

<href>

Answer

<url>

Question 25

What is the purpose of the CSS box model?

Accepted Answer

To define the layout and dimensions of HTML elements

Answer

To create animations

Answer

To style text