JNTU Ph.D in Computer Science Entrance Exam question paper

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Question 1

__________________Is a program which reproduces itself A a) Virus
B b) Software
C c) Both
D d) None of the above

Question 2

_____________ Viruses that aim at the boot sector of a hard drive are infecting a verycrucial component of the boot processA a) File infection virus
B b) Boot virus
C c) Network virus
D d) E-mail virus

Question 3

____________Is the virus that they will attach themselves to EXE files, compressedfiles like ZIP files and driver filesA a) File infector virus
B b) Boot virus
C c) Network virus
D d) E-mail virus

Question 4

-__________ Is the virus, which is uniquely created to quickly spread throughoutthe local area networkA a) File infector virus
B b) Boot virus
C c) Network virus
D d) E-mail virus

Question 5

Which of the following are the main purposes of an operating systemA a) To provide an environment for a computer user to execute programs on a computer hardware in a convenient and efficient manner
B b) To allocate separate resources of the computer as needed to solve the problem given
C c) Supervision of the executions of user programs to prevent errors and improper use of computer
D d) All of the above

Question 6

Define acronym ‘spooling’A a) Simultaneous Peripheral Operation On-line
B b) Simultaneous Peripheral Operation Off-line
C c) Simultaneous Peripheral Organization On-line
D d) System Peripheral Operation On-line

Question 7

Several programs are in a memory concurrently; the system switchesamong the programs for efficient processing and minimal idle time iscalled _____________A a) Multi tasking
B b) Multi programming
C c) Multi functioning
D d) None of the above

Question 8

____________ Is the using scheduling and multiprogramming to provide aneconomical interactive system of two or more usersA a) Time sharing
B b) Time changing
C c) Processing
D d) None of the above

Question 9

_______________ Is a system with two or more central processing unitsA a) No definition
B b) Multi processor
C c) Double processor
D d) None of the above

Question 10

__________ Is the system where fast response is desirable, but not requiredA a) Real time systems
B b) Time sharing systems
C c) Both (a) and (b)
D d) None of the above

Question 11

______________ Is the system where processing must be completed with in certaintime constraints appropriate for the systemA a) Real time systems
B b) Time sharing systems
C c) Both (a) and (b)
D d) None of the above

Question 12

___________ Is the smallest block that can be read or written on a disk A a) Sector
B b) Track
C c) Disk
D d) None of the above

Question 13

______________ Is the collection of sectors all as same circumference on a singlesurface A a) Track
B b) Sector
C c) Disk
D d) None of the above

Question 14

_______________________ Is the time interval when a process uses Central Processing Unitonly A a) CPU burst
B b) I/O burst
C c) (a) And (b)
D d) Either (a) or (b)

Question 15

______________ Is the time interval when a process uses I/O devices only A a) CPU burst
B b) I/O burst
C c) (a) And (b)
D d) Either (a) or (b)

Question 16

______________ Is the time interval when a process uses I/O devices only A a) CPU burst
B b) I/O burst
C c) (a) And (b)
D d) Either (a) or (b)