Operating System (OS)
A spooler is a

Message sent from the printer to the operating system when a print job is completed
Program that coordinates the print job that are waiting to process
Location in memory that maintains the contents of documents until it prints
Queue of print job that are waiting to print

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Operating System (OS)
Backups should be done

as several image copies, followed by an incremental
None of these
daily for most installations
weekly for most installations
as several incrementals, followed by an image copy

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