Operating System (OS)
The LRU algorithm

pages out pages that have been least used recently
pages out pages that have been used recently
pages out the first page in a given area
pages out pages that have not been used recently
None of these

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Operating System (OS)
A spooler is a

Location in memory that maintains the contents of documents until it prints
Message sent from the printer to the operating system when a print job is completed
Queue of print job that are waiting to print
Program that coordinates the print job that are waiting to process

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

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

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Operating System (OS)
What is the meaning of "Hibernate" in Windows XP/Windows 7?

Restart the Computer in hibernate mode
Restart the Computer in safe mode
Shutdown the Computer without closing the running applications
Shutdown the Computer terminating all the running applications

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