Which jQuery method is used to select elements by their class name?

Which of the following is true about jQuery selectors?

A). Select by tag name

B). Cannot select by ID

C). Can select by various criteria

D). Limited to selecting parent elements

What is the purpose of the .addClass() method in jQuery?

A). Remove a class

B). Add a class

C). Toggle a class

D). Hide an element

What is the purpose of the .slideUp() method in jQuery?

A). Slide down element

B). Slide up element

C). Toggle visibility of element with sliding effect

D). Adjust height of element gradually

What does the .val() method do in jQuery?

A). Remove form inputs

B). Validate form inputs

C). Get or set the value

D). Add validation rules

Which jQuery method is used to append content to an element?

A). Add content

B). Append content

C). Insert content

D). Attach content

How can you execute jQuery code after the DOM is fully loaded?

A). document.onload

B). Embedding jQuery code

C). jQuery.ready()

D). window.onload

What is the purpose of the .html() method in jQuery?

A). Change HTML content

B). Get HTML content

C). Add HTML content

D). Hide an element

What does the .attr() method do in jQuery?

A). Add attributes

B). Get or set attributes

C). Remove attributes

D). Toggle attributes

How can you animate an element's width using jQuery?

A). $('#element').animate({width: '+=100px'})

B). $('#element').animate({width: '100px'})

C). $('#element').width('100px')

D). $('#element').style

What is the purpose of the .css() method in jQuery?

A). Create CSS styles

B). Apply CSS styles

C). Change color of text

D). Hide elements