Operating System (OS)
Backups should be done

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

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Operating System (OS)
The function(s) of the Storage Assignment is (are)

to assign storage to all temporary locations that are necessary for intermediate results.
to assign storage to all variables referenced in the source program.
to assign storage to literals, and to ensure that the storage is allocate and appropriate locations are initialized.
All of these
None of these

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Operating System (OS)
All of the following are task performed by the operating system except

Managing hardware on the computer
Provides an interface for user to interact with computer
Controlling the access that application program has to the CPU
Performing housekeeping task like file compression and disk defragmentation

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