1. __________________Is a program which reproduces itself
a) Virus
b) Software
c) Both
d) None of the above
2. _____________ Viruses that aim at the boot sector of a hard drive are infecting a very crucial component of the boot process
a) File infection virus
b) Boot virus
c) Network virus
d) E-mail virus
3. ____________Is the virus that they will attach themselves to EXE files, compressed files like ZIP files and driver files
a) File infect or virus
b) Boot virus
c) Network virus
d) E-mail virus
4. __________ Is the virus, which is uniquely created to quickly spread throughout the local area network
a) File infect or virus
b) Boot virus
c) Network virus
d) E-mail virus
5. Which of the following are the main purposes of an operating system
a) To provide an environment for a computer user to execute programs on a computer hardware in a convenient and efficient manner
b) To allocate separate resources of the computer as needed to solve the problem given
c) Supervision of the executions of user programs to prevent errors and improper use of computer
d) All of the above
6. Define acronym ‘spooling’
a) Simultaneous Peripheral Operation On-line
b) Simultaneous Peripheral Operation Off-line
c) Simultaneous Peripheral Organization On-line
d) System Peripheral Operation On-line
7. Several programs are in a memory concurrently; the system switches among the programs for efficient processing and minimal idle time is called _____________
a) Multi tasking
b) Multi programming
c) Multi functioning
d) None of the above
8. ____________ Is the using scheduling and Multi programming to provide an economical interactive system of two or more users
a) Time sharing
b) Time changing
c) Processing
d) None of the above
9. _______________ Is a system with two or more central processing units
a) No definition
b) Multi processor
c) Double processor
d) None of the above
10. __________ Is the system where fast response is desirable, but not required
a) Real time systems
b) Time sharing systems
c) Both (a) and (b)
d) None of the above
11. ______________ Is the system where processing must be completed with in certain time constraints appropriate for the system
a) Real time systems
b) Time sharing systems
c) Both (a) and (b)
d) None of the above
12. ___________ Is the smallest block that can be read or written on a disk
a) Sector
b) Track
c) Disk
d) None of the above
13. ______________ Is the collection of sectors all as same circumference on a single surface
a) Track
b) Sector
c) Disk
d) None of the above
14. _______________________ Is the time interval when a process uses Central Processing Unit only
a) CPU burst
b) I/O burst
c) (a) And (b)
d) Either (a) or (b)
15. ______________ Is the time interval when a process uses I/O devices only
a) CPU burst
b) I/O burst
c) (a) And (b)
d) Either (a) or (b)
Answers Key:
1 (a) 2 (b) 3 (c) 4 (c) 5 (d) 6 (a) 7 (b) 8 (a) 9 (b) 10 (b) 11 (a) 12 (a) 13 (a) 14 (a) 15 (b)
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