Operating System (OS)
Scissoring enables

entire data to be displayed
a part of data to be displayed
None of these
full data display on full area of screen
no data to be displayed

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Operating System (OS)
A critical region is

a program segment that often causes unexpected system crashes
one which is enclosed by a pair of P and V operations on semaphores
a program segment that has not been proved bug-free
none is the above
a program segment where shared resources are accessed

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Operating System (OS)
What is the method of handling deadlocks?

Allow the system to enter the deadlock state and then recover
Pretend that deadlocks never occur in the system
Use a protocol to ensure that the system will never enter a deadlock state
All of these

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