Bootstrap MCQs – Setup and Configuration

11.) What is the purpose of the Bootstrap 5 grid system?

A) To manage layouts using tables
B) To create responsive, flexible layouts
C) To enhance JavaScript performance
D) To style fonts and colors

Answer: Option B

Explanation: Bootstrap 5’s grid system helps create responsive layouts using rows and columns.

12.) What is the default primary color in Bootstrap 5?

A) Blue
B) Red
C) Green
D) Purple

Answer: Option A

Explanation: Bootstrap 5’s default primary color is blue, but it can be customized using Sass variables.

13.) Which command installs Bootstrap 5 using Yarn?

A) yarn bootstrap install
B) yarn add bootstrap
C) yarn get bootstrap
D) yarn download bootstrap

Answer: Option B

Explanation: To install Bootstrap 5 using Yarn, use the command yarn add bootstrap.

14.) What does the bootstrap.bundle.min.js file include?

A) Only Bootstrap’s JavaScript functions
B) Only tooltips and modals
C) Only CSS styles
D) JavaScript + Popper.js

Answer: Option D

Explanation: The bootstrap.bundle.min.js file includes Bootstrap’s JavaScript components along with Popper.js.

15.) What is the main purpose of Bootstrap’s _variables.scss file?

A) To define JavaScript functions
B) To store default styles and variables
C) To link HTML files
D) To manage database connections

Answer: Option B

Explanation: Bootstrap’s _variables.scss file contains Sass variables for customizing the framework’s styles.

16.) What happens if Bootstrap’s CSS file is missing?

A) The website loads normally
B) JavaScript components still work
C) Styles and layout break
D) Nothing happens

Answer: Option C

Explanation: If Bootstrap’s CSS file is missing, all styles will be lost, leading to a broken layout.

17.) Which Bootstrap method is best for installing dependencies in a Node.js project?

A) npm or yarn
B) Manual download
C) CDN
D) Google Fonts

Answer: Option A

Explanation: npm and yarn are the best package managers for handling Bootstrap dependencies in a Node.js project.

18.) Which of the following is NOT a valid way to include Bootstrap 5 in a project?

A) Using npm
B) Using a CDN
C) Downloading and linking manually
D) Using Python scripts

Answer: Option D

Explanation: Bootstrap is a front-end framework and is not installed using Python scripts.

19.) What is the recommended method for customizing Bootstrap styles?

A) Editing bootstrap.min.css
B) Using !important in custom CSS
C) Using Sass variables
D) Directly modifying Bootstrap’s core files

Answer: Option C

Explanation: The best way to customize Bootstrap styles is by modifying Sass variables rather than changing core files.

20.) How can you override Bootstrap’s default styles?

A) By editing bootstrap.min.css
B) By using CSS rules in a separate stylesheet
C) By modifying the HTML structure
D) It is not possible

Answer: Option B

Explanation:The best practice is to override Bootstrap styles using custom CSS instead of modifying its core files.

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