How does AJAX use the XMLHttpRequest object"?

• A.It provides Web page compatibility with mobile device browsers
• B.It provides backward-compatibility with older browser versions
• C.It changes a portion of a Web page so only the affected part of the page will be reloaded
• D.It performs code validation on the server-side in order to speed up the process of validation

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Consider the following code:

What will be displayed for the computer inventory after the Update Inventory button is clicked twice?

• A.22
• B.19
• C.20
• D.18

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Jackson was testing his code when the Web browser became locked and he had to close it to stop the script What might he have accidentally done when coding his Web site?

• A.Coded an infinite loop
• B.Coded a frame that breaks the same origin policy
• C.Coded deprecated HTML
• D.Coded an input element that is vulnerable to XSS

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Consider the following code:

The JavaScript function above will display the following:

• A.The package will be delivered to Florida Company headquarters are located in Arizona
• B.The package will be delivered to Arizona Company headquarters are located in Florida
• C.The package will be delivered to 123 Main Street Anytown Arizona 98765 Company headquarters are located in P.O Box 789 Central City Florida 541321
• D.The package will be delivered to P.O. Box 789 Central City Florida 54321 Company headquarters are located in 123 Main Street Anytown Arizona 98765

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Consider the following code:

What is the result if this code is run in a browser?

• A.25
  10
  20
  30
• B.25
  10
  20
  30
• C.5
  2
  4
  6
• D.the code contains a logic error and would display a blank screen.

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