1 .
Which of the following is NOT a famous operating system?
A.  Windows Vista
B.  Mac OS X
C.  Linux
D.  Sun OS
E.  Virtual Box
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2 .
Window 95, Windows 98 and Windows NT are known as
A.  Processors
B.  Domain names
C.  Modems
D.  Operating systems
E.  None of these
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3 .
The primary purpose of an operating system is:
A.  To make the most efficient use of the computer hardware
B.  To allow people to use the computer
C.  To keep systems programmers employed
D.  To make computers easier to use
E.  None of these.
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4 .
Which of the following Operating System does not implement multitasking truly?
A.  window 98
B.  windows NT
C.  windows XP
D.  MS DOS
E.  None of these
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5 .
______ is used in operating system to separate mechanism from policy
A.  single level implementation
B.  Two level implementation
C.  Multi level implementation
D.  All the above
E.  None of these
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6 .
The operating system creates ___ from the physical computer
A.  Virtual space
B.  Virtual computers
C.  Virtual device
D.  All the above
E.  None of these
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7 .
Unix Operating System is an
A.  Multi user operating system
B.  Time sharing operating system
C.  Multi tasking operating system
D.  All the above
E.  None of these
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8 .
In which type of the following OS, the response time is very crucial.
A.  Network operating system
B.  Real Time operating system
C.  Batch operating system
D.  Unix operating system
E.  None of these
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9 .
What should be the first step while OS upgrading?
A.  Delete old operating system
B.  Backup old operating system
C.  Backup critical data
D.  Format Hard Disks
E.  None of these
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10 .
What should be the first step while OS upgrading?
A.  Graphical User interface
B.  Command Line Interface
C.  Both A and B
D.  All the above
E.  None of these
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11 .
Which operating system use write through catches
A.  Unix
B.  Xenix
C.  Ultrix
D.  dos
E.  None of these
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12 .
An Operating System that can predict the exact time duration for operations is called
A.  Hard RTOS
B.  Soft RTOS
C.  Both A and B
D.  All the above
E.  None of these
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13 .
The command interpreter in Linux operating system is known as ---
A.  Fork
B.  Kernel
C.  Shell
D.  All the above
E.  None of these
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14 .
Even if a disk drive fails, the computer application running and using it can continue processing. This application is said to have been designed with this feature called
A.  100 percent up-time
B.  Fault tolerance
C.  High reliability
D.  All of these
E.  None of these
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15 .
What is the name of the operating system for the laptop computer called MacLite?
A.  Windows
B.  Dos
C.  Ms-Dos
D.  OZ
E.  None of these
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16 .
Memory management is :
A.  Not used in modern operating system
B.  Replaced with virtual memory on current systems
C.  Not used on multiprogramming systems
D.  Critical for even the simplest operating systems
E.  None of these
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17 .
Every computer has a(n) ____________; many also have __________.
A.  Operating system; a client system
B.  Operating system; instruction sets
C.  Application programs; an operating system
D.  Application programs; a client system
E.  Operating system; application programs
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18 .
Disk scheduling includes deciding
A.  Which should be accessed next
B.  The order in which disk access requests must be serviced
C.  The physical location of the file
D.  The logical location of the fiile
E.  None of these
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19 .
Which scheduling policy is best suited for time-sharing operating systems
A.  Shortest job first
B.  Round robin
C.  First come first serve
D.  Elevator
E.  None of these
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20 .
The operating system called UNIX is typically used for
A.  Desktop computers
B.  Laptop computers
C.  Super computers
D.  Web servers
E.  All of these
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21 .
Which among following scheduling algorithms give minimum average waiting time
A.  First come first serve
B.  shortest job first
C.  round robin
D.  on priority
E.  None of these
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22 .
In real time OS, which is most suitable scheduling scheme
A.  Round robin
B.  First come first serve
C.  Pre-emptive scheduling
D.  Random scheduling
E.  None of these
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23 .
For multiprogramming operating system
A.  Special support from processor is essential
B.  Special support from processor is not essential
C.  Cache memory is essential
D.  Special support from processor but cache memory is essential
E.  None of these
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24 .
In which scheduling policies, context switching never takes place
A.  Round robin
B.  shortest job first
C.  Pre emptive
D.  On priority
E.  first come first served
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25 .
Which is single user operating system?
A.  Ms-Dos
B.  Unix
C.  Xenix
D.  Linux
E.  None of these
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26 .
Executing more than one program concurrently by one user on one computer is known as
A.  Multi programming
B.  Multi processing
C.  Time sharing
D.  Multi tasking
E.  Multi action
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27 .
Which operating system reacts in the actual time
A.  Batch system
B.  Quick response system
C.  Real time system
D.  Time sharing system
E.  None of these
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28 .
Which technique is used by operating systems to execute several programs concurrently by switching back and forth?
A.  partioning
B.  Multitasking
C.  windowing
D.  paging
E.  None of these
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29 .
A thread is
A.  Lightweight process where the context switching is low
B.  Lightweight process where the context switching is high
C.  Used to speed up paging
D.  Used in deadlocks
E.  None of these
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30 .
Operating system is
A.  A collection of hardware components
B.  A collection of input output devices
C.  A collection of software routines
D.  All of above
E.  None of these
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