Which one is a reserved word?

• A) value
• B) myVar
• C) name
• D) class

A trailing comma in an array may cause:

• A) No change at all
• B) Better performance
• C) Unexpected behavior or errors in some cases
• D) Faster execution

All selectors in jQuery start with _______________.

• A) ~()
• B) $()
• C) %()
• D) #()

When does the finally block run in JavaScript?

• A) Only when there is an error
• B) It always runs whether there is an error or not
• C) Only when there is no error
• D) It never runs

How do you create an array in JavaScript using literal syntax?

• A) var arr = <>
• B) var arr = []
• C) var arr = ()
• D) var arr = {}

In DOM tree, a descendant can be ___________.

• A) Child, grand-child, great grand-child and so on.
• B) Parent, grand parent, great grand-parent and so on.
• C) Siblings
• D) All of the given options

What is the result of the expression "2" > "12" in JavaScript?

• A) Runtime error
• B) false
• C) true
• D) NaN

innerWidth() method of JQuery returns:

• A) width of an element including border
• B) width of an element excluding border
• C) width of an element including padding
• D) width of an element excluding padding

What is the result of Number("3.14")?

• A) NaN
• B) 3
• C) "3.14"
• D) 3.14

Which approach improves code reusability in AJAX programs?

• A) Loop structure
• B) Array usage
• C) Switch statement
• D) Callback function

What is the role of the first statement in a for loop?

• A) To display output
• B) To define the loop condition
• C) To initialize the loop variable
• D) To increment the loop variable

Which property returns XML data?

• A) getXML
• B) XMLResponse
• C) responseText
• D) responseXML

AJAX is about:

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

What does readyState = 4 indicate in an XMLHttpRequest?

• A) Response is fully received and ready to use
• B) Request has not started
• C) Server is disconnected
• D) Request is being sent

Which object is used in AJAX?

• A) WebRequest
• B) XMLHttpRequest
• C) HttpRequest
• D) AJAXObject

Default parameters help to:

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

What happens when a break statement is executed?

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

In JQuery, outerHeight() method returns:

• A) height of an element excluding padding
• B) height of an element including padding
• C) height of an element including border and padding
• D) height of an element excluding border and padding

In the statement var x = 5;, what gets hoisted?

• A) Nothing is hoisted
• B) The value 5
• C) The declaration var x
• D) The assignment x = 5

Which property returns string response?

• A) responseString
• B) responseText
• C) responseXML
• D) textResponse