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UGC-NET/GATE Multiple Choice Questions for Operating System.
Let the time taken to switch between user mode and kernel mode of execution be T1 while time taken to switch between two user processes be T2. Which of the following is correct?
T1 < T2
T1 > T2
T1 = T2
Nothing can be said about the relation between T1 and T2.
A state is safe if the system can allocate resources to each process (up to its maximum) in some order and still avoid deadlock. Then
deadlocked state is unsafe
unsafe state may lead to a deadlock situation
deadlocked state is a subset of unsafe state
all of these
Jobs are allocated CPU space for its execution by algorithm of
CPU bound algorithm
CPU assistance algorithm
CPU tasker algorithm
CPU scheduler algorithm
File storage system is one of computer system's
The ..... is used by device controllers to request service.
none of the mentioned
There are 5 questions to complete.