Computer Hardware
Dust in a computer actually increases the size of the magnetic fields inside it. This is not good, so you must occasionaiy dust, I trust. What's the best way to do this?

reverse vacuum
non-static compressed air
blow real hard on the system board
any small vacuum device
use a lint-free cloth and wipe gently

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Computer Hardware
During boot-up, the memory test

Is an operational error
Is a superfluous step that should be ignored
Displays what memory is installed, but nothing else
Checks and verifies that contiguous memory is installed

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Computer Hardware
A workstation has just been installed on an Ethernet LAN, but cannot communicate with the network. What should you check first?

verify the link status on the computer's network card
None of the listed here
verify the ip configuration on the workstation
reinstall the network interface card driver

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