Operating System (OS)
Which of the following statement about directories is false?

Directories can be deleted
Directories can exist inside directories
The root directory is always at the highest level
Directories cannot be renamed

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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 terminating all the running applications
Shutdown the Computer without closing the running applications

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Operating System (OS)
Thrashing

None of these
always occurs on large computers
is a natural consequence of virtual memory systems
can be caused by poor paging algorithms
can always be avoided by swapping

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