Operating System (OS)
System maintenance:

always requires several programs
is necessary on all systems, regardless of how good
None of these
is not required if the system is well written
is usually not necessary

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Operating System (OS)
Which of the following refers to the associative memory?

there is no need for an address i.e. the data is used as an address
None of these
the address of the data is generated by the CPU
the address of the data is supplied by the users
the data are accessed sequentially

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

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

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