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

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

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Operating System (OS)
Feed back queue

are used to favor real-time tasks
dispatch tasks according to execution characteristics
require manual intervention to implement properly
are very easy to implement
None of these

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Operating System (OS)
Link encryption

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

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