Operating System (OS)
Which one is true for unconditional disk formatting?

Transfer system files after format
All of above
Do not check/scan surface after format
Destroys every byte of data on a disk by overwriting it with with blank spaces

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Operating System (OS)
Memory management is :

replaced with virtual memory on current systems
not used in modern operating system
not used on multiprogramming systems
None of these
critical for even the simplest operating systems

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