Critical Thinking QuestionsCase 1-2John's new computer has started to perform oddly and he is concerned that it may have become infected with malware. He knows that you work for a company that produces antivirus software so he gives you a call to ask for advice. What do you tell him is the difference between a worm and a Trojan horse?
What will be an ideal response?
A worm is a program that copies itself repeatedly, for example in memory or on a network, using up resources and possibly shutting down the computer or network. A Trojan horse (named after the Greek myth) is a program that hides within or looks like a legitimate program. A certain condition or action usually triggers the Trojan horse. Unlike a virus or worm, a Trojan horse does not replicate itself to other computers.
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Anything on the Flash stage is a(n) ____________________, including text, bitmaps, traced bitmaps, lines, circles, and rectangles.
Fill in the blank(s) with the appropriate word(s).
Match the following terms to their meanings:
I. user types data and is allowed to change the format II. user enters data but is not allowed to change the format III. user picks a choice from a list but then modifies the item name IV. user selects from a list of predefined items V. user selects an item by clicking the box that displays beside the item A. Plain Text control B. Drop-Down List control C. Combo Box control D. Check Box control E. Rich Text control
After creating an instance of a Web service, you can code a(n) ____________________ that calls the Web service.
Fill in the blank(s) with the appropriate word(s).
Content of a cell can be cleared by pressing the ________ key when the cell is active
Fill in the blank(s) with the appropriate word(s).