Operating System (OS)
....... is the layer of a computer system between the hardware and the user program

Operating environment
None of these
Operating system
System environment

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

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

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Operating System (OS)
Link encryption

is used only to debug
can not be used in a public network
is more secure than end-to-end encryption
is less secure than end-to-end encryption
None of these

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