What happens after using $.noConflict()?

• A) CSS stops working
• B) $ becomes available for other libraries
• C) jQuery stops working
• D) DOM is removed

What does $(document).ready() do?

• A) Loads CSS
• B) Hides elements
• C) Executes code after document loads
• D) Creates events

Which of the following is/are example(s) of event?

• A) selecting a radio button
• B) clicking on an element
• C) moving a mouse over an element
• D) All of the given options

Which jQuery code correctly sets both width and height to 500 pixels?

• A) $("#div1").size(500)
• B) $("#div1").resize(500)
• C) $("#div1").width(500).height(500);
• D) $("#div1").setSize(500,500)

Math.random() returns value between:

• A) -1 and 1
• B) 0 and 1
• C) 10 and 100
• D) 1 and 10

XML is used as a format for document storage and processing, ____________.

• A) both online and offline
• B) online
• C) None of the given options
• D) offline

What is the main advantage of AJAX?

• A) Loads data without refreshing the page
• B) Changes CSS styles
• C) Creates new HTML pages
• D) Reloads the full page

XML is commonly used to:

• A) Replace JavaScript
• B) Separate data from presentation
• C) Design hardware
• D) Compress images

Which parameter is required in load() method?

• A) status
• B) URL
• C) data
• D) callback

fadeToggle() does what?

• A) Stops animation
• B) Only fades out
• C) Toggles fade in/out
• D) Only fades in

Which of the following is a correct example of jQuery chaining?

• A) slideUp, slideDown
• B) css + slideUp
• C) css().slideUp().slideDown()
• D) css(); slideUp();

Where can $ still be used after noConflict()?

• A) Only in CSS
• B) Inside a function where it is passed as a parameter
• C) Nowhere
• D) Anywhere in code

A while loop executes:

• A) A fixed number of times
• B) Infinite number of times
• C) Only once
• D) As long as the condition remains true

How can we access a form using JavaScript?

• A) window.form()
• B) document.getElementByClass()
• C) document.forms["formName"]
• D) getForm()

undefined means:

• A) Value not assigned yet
• B) Null value
• C) String value
• D) Number value

Loop performance improves when you:

• A) Increase iterations
• B) Use recursion
• C) Move calculations outside the loop
• D) Add extra variables

What happens when a break statement is executed?

• A) The loop terminates immediately and control exits the loop
• B) Only one iteration is skipped
• C) The loop restarts
• D) The loop continues execution

Default parameters help to:

• A) Remove function
• B) Stop execution
• C) Prevent undefined values in functions
• D) Create loops

The unary + operator is used to:

• A) Convert a string into a number
• B) Convert a boolean into a string
• C) Convert an object into an array
• D) Convert a number into a string

AJAX is about:

• A) Both Sending and receiving data from server by reloading the whole page
• B) Receiving data from server without reloading the whole page
• C) Sending data to server without reloading the whole page
• D) Both sending and receiving data from server without reloading the whole page