Computer Hardware
The monitor power LED is 'on' but the monitor screen is completely dark. The least likely cause of the problem is:

Defective monitor
System RAM problem
Disconnected video cable
Defect in the computers video circuitry
None of these

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Computer Hardware
You're on your PC at midnight and an electric storm pops up. What's the best way to protect your PC.

you don't worry; you have a lightning rod on your house
you don't worry; you've got a surge protector on your PC
unplug the PC and remove phone line from the modem
stop standing on it
you don't worry; you've got a surge protector on your PC and phone line to your modem

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Computer Hardware
A customer attached an external drive to his notebook computer but the computer is not recognizing it. What should be considered?

The cables are attached firmly
The external drive is turned on
The external drive has been pre¬loaded with the appropriate software
All of these
The external drive was attached before the computer was on

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