Computer Hardware
Which of the following is a type of preventative maintenance used on a hard drive?

Disk check diagnostics
Head alignment diagnostics
Uninstalling programs
None of these
Initializing

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Computer Hardware
During boot-up, the memory test

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

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