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

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

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Operating System (OS)
The necessary conditions needed before deadlock can occur?

No Mutual Exclusion, Hold and wait, Preemption, Circular Wait
Mutual Exclusion, Hold and wait, No Preemption, Circular Wait
Mutual Exclusion, No Hold and wait, Preemption, Circular Wait
Mutual Exclusion, Hold and wait, Preemption, No Circular Wait

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Operating System (OS)
Daisy chain is a device for

interconnecting a number of devices to a number of controllers
None of these
connecting a number of devices to a controller
connecting a number of controllers to a device
All of these

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