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

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
It allocates the smallest hole from the available memory holes

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Operating System (OS)
Addressing modes

None of these
performs indicated operations on two fast registers of the machine and leave the result in one of the registers.
All of these
defines the fundamental method of determining effective operand addresses
are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.

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