Operating System (OS)
Which of the following is not a characteristic of a daisy chaining priority control scheme?

the number of control lines is independent of the number of devices on the chain
priority is programmable
the failure of one device may affect other devices on the chain
it is relatively easy to add more devices to the chain
None of these

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

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

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