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

In a jQuery plugin, how do you select the current element?

A). this

B). $(this)

C). element

D). $(element)

What is a common use of jQuery plugins?

A). Enhancing user interfaces

B). Connecting to databases

C). Server-side scripting

D). File handling

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 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

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

A). $.extend()

B). $.merge()

C). $.combine()

D). $.concat()

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

A). Iterates over elements

B). Filters elements

C). Binds events

D). Animates elements

How can you ensure a jQuery plugin does not conflict with other libraries?

A). Use noConflict()

B). Use unique variable names

C). Avoid global variables

D). Use namespaces

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

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 apply a plugin to selected elements?

A). $(selector).pluginName()

B). $(selector).usePlugin()

C). $(selector).applyPlugin()

D). $(selector).newPlugin()