Operating System (OS)
Which of the following statement is true.

Seek analysis is used for analysing control-unit busy problems.
Thrashing is a natural consequence of virtual memory systems.
None of these
The LRU algorithm pages out pages that have been used recently
All of these

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Operating System (OS)
Addressing structure

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

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Operating System (OS)
Object code

must be rewritten before execution
must be "loaded" before execution
is the output of compilers, but not assemblers
is ready to execute
None of these

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