Operating System (OS)
The working set theory of programming behaviour of processes running within an operating system involves

disk scheduling mechanisms
coalescing holes in memory
None of these
assigning the CPU to processes
the collection of pages that a process accesses

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Operating System (OS)
A real time operating system is most likely to be used for which of the following task?

Ensuring that system clock works correctly on server
Managing the access to system files in a laptop computers
Controlling access to a shared printer in a network
Controlling the fuel injection system of an automobile engines

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

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

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

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

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Operating System (OS)
Object code

None of these
is the output of compilers, but not assemblers
must be "loaded" before execution
is ready to execute
must be rewritten before execution

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