Operating System (OS)
Whenever you move a directory from one location to another

The directory is moved the source file is not moved
All files inside the directory are moved
Both A and B
All the subdirectory inside that directory are moved

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Operating System (OS)
Backups should be done

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

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Operating System (OS)
Assembler language

None of these
requires fixed-format commands
is usually the primary user interface
is a mnemonic form of machine language
is quite different from the SCL interpreter

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