Quiz | Croma Campus

Which HTML attribute is used to specify that an input field must be filled out?

required
placeholder
validate
pattern

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In JavaScript, how do you declare a variable?

var
int
String
float

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What is the purpose of the 'componentDidMount()' method in React?

To handle form submissions
To fetch data after component mounts
To initialize state
To update state

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What does JSON stand for?

JavaScript Object Notation
JavaScript Online Notation
JavaScript Oriented Notation
Java Syntax Object Notation

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Which of the following is a common backend framework for Node.js?

Express
Flask
Laravel
Symfony

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Which of the following is a backend programming language?

HTML
CSS
JavaScript
Node.js

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Which CSS framework is known for its responsive design capabilities?

Bootstrap
Foundation
Materialize
Tailwind

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What is the default value of the 'flex-direction' property in CSS flexbox?

row
column
row-reverse
column-reverse

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Which of the following is a JavaScript testing framework?

Mocha
Selenium
JUnit
Cucumber

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In React, what is the purpose of useState?

To handle side effects
To manage component state
To perform AJAX requests
To handle context

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In JavaScript, what is the purpose of the 'this' keyword?

Refers to the current object
Refers to the next object
Refers to a global object
Refers to a new object

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Which of the following is a frontend framework?

Flask
Spring
Angular
Django

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In JavaScript, which function is used to parse a JSON string?

JSON.parse()
JSON.stringify()
parseJSON()
JSON.convert()

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Which tag is used to create a drop-down list in HTML?

<select>
<dropdown>
<list>
<datalist>

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In JavaScript, which method is used to convert an array to a string?

toString()
join()
concat()
slice()

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What does the acronym MVC stand for in web development?

Model-View-Controller
Module-View-Controller
Model-View-Content
Module-View-Content

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Which of the following is a commonly used open-source web server?

Apache
IIS
Nginx
Tomcat

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What is the purpose of the 'ngFor' directive in Angular?

To repeat a set of HTML nodes
To conditionally render content
To bind a value to the model
To listen to events

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Which tool is used for automating browser actions?

Webpack
Babel
Gulp
Selenium

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What is the purpose of the 'map()' function in JavaScript?

To transform each element in an array
To filter elements in an array
To find elements in an array
To sort elements in an array

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In HTML, which attribute is used to specify the URL of an image?

href
src
link
url

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What is the correct HTML element for inserting a line break?

<lb>
<br>
<break>
<line>

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Which method is used to add a new element at the end of an array in JavaScript?

push()
pop()
shift()
unshift()

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Which command is used to initialize a new Git repository?

git init
git start
git create
git new

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In CSS, which property is used to set the spacing between lines of text?

line-height
spacing
text-spacing
letter-spacing

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What is the purpose of the 'flexbox' layout in CSS?

To create a flexible layout
To create grid layouts
To add animations
To control visibility

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Which HTTP method is used to update a resource?

GET
POST
PUT
DELETE

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Which of the following is used to style React components?

CSS
SCSS
Styled-components
Less

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Which of the following is a NoSQL database?

MySQL
PostgreSQL
MongoDB
SQLite

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Which protocol is used to secure HTTP traffic?

FTP
SMTP
HTTPS
SSH

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