Operating System (OS)
Capacity planning

is independent of the operating system
None of these
is not needed in small installations
does not depend on the monitoring tools available
requires detailed system performance information

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Operating System (OS)
The Memory Address Register

is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
contains the address of the memory location that is to be read from or stored into.
None of these
is a hardware memory device which denotes the location of the current instruction being executed.
contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".

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Operating System (OS)
What hole will allocates in "Worst-Fit" algorithm of memory management?

It allocates the smallest hole from the available memory holes
It allocates the exact same size memory hole
It allocates the largest hole from the available memory holes
It allocates the smaller hole than required memory hole

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