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MCQs Operating System|UGC-NET|GATE|Computer Science

11.In round robin CPU scheduling as time quantum is increased the average turn around time
A.increases
B.decreases
C.remains constant
D.varies irregularly
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Explanation
12.Pool based allocation of memory achieves better usage. Memory can be preempted from inactive programs and used to accommodate active programs. This is called
A.Preemption
B.Swapping
C.Spooling
D.Scheduling
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Explanation
13.Which of these is an example of a virtual resource?
A.Print server
B.Virtual machine
C.Virtual memory
D.All of the above
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14.Which concept explains the working of an Operating System?
A.It is event driven
B.It is object oriented
C.It is procedure based system software
D.It is a collection of procedures that interact with each other
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Explanation
15.Which of these is/are the desirable features of an Operating system
A.Extensible
B.Portable
C.Reliable
D.All of the above
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16.Blocking and Caching are the terms associated with which Operating system functions respectively
A.Memory management and Disk Scheduling
B.IOCS and Disk Scheduling
C.IOCS and Memory management
D.Process management and IOCS
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17.Which of these is not a term describing the collection of Operating Programs
A.Monitor
B.Kernel
C.Supervisor
D.Server
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18.Transparency is a desirable feature of which type of Operating system-
A.Batch Processing
B.Real time
C.Distributed
D.Time sharing
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19.Which operating system implementation has to focus on the issue of Good response time
A.Batch Processing
B.Multiprogramming
C.Distributed
D.Time sharing
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Explanation
20.Program Priorities, Preemption are the key concepts of
A.Batch Processing
B.Real time
C.multiprogramming
D.Time sharing
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Author Does Not claim of any answer these answers are as per expert opinion


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