Which method is used to extend jQuery's functionality by adding a plugin?

What is a common use of jQuery plugins?

A). Enhancing user interfaces

B). Connecting to databases

C). Server-side scripting

D). File handling

What does the $.each() method do in jQuery?

A). Iterates over elements

B). Filters elements

C). Binds events

D). Animates elements

What is the benefit of using the 'this.each()' method in a jQuery plugin?

A). Iterates through each element in the matched set

B). Selects a single element

C). Filters elements

D). Binds events

What does the $.extend() method do in a jQuery plugin?

A). Merge objects

B). Create animations

C). Handle events

D). Perform Ajax requests

How do you provide default settings for a jQuery plugin?

A). Using $.extend()

B). Using $.defaults()

C). Using $.settings()

D). Using $.config()

What is the purpose of using the $.fn object in jQuery plugins?

A). To access jQuery prototype

B). To access the DOM directly

C). To handle events

D). To create HTML elements

What is the purpose of the self-invoking function in jQuery plugins?

A). Encapsulation

B). Event binding

C). Animation

D). Ajax handling

Which jQuery method is used to merge two or more objects?

A). $.extend()

B). $.merge()

C). $.combine()

D). $.concat()

How can you pass options to a jQuery plugin?

A). As an object

B). As a string

C). As an array

D). As a number

Which of the following is an example of a jQuery plugin?

A). DataTables

B). Bootstrap

C). PHPMyAdmin

D). MySQL