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Sunday, April 15, 2012

COMPUTER AWARENESS PRACTICE MCQs

1. Technology no longer protected by copyright, available to everyone, is considered to be:
(A) proprietary
(B) open
(C) experimental
(D) in the public domain
(E) None of these
Answer: (A)

2. A typical modern computer uses
(A) Magnetic cores
(B) LSI chips
(C) Magnetic tapes
(D) More than 1000 vacuum tubes
(E) None of these
Answer: (B)

3.ALU is called for _____ of a computer
(A) Heart
(B) Master dispatcher
(C) Primary memory
(D) All of the above
(E) None of these
Answer: (C)

4. A single dimensional array is called
(A) List
(B) Subscripts
(C) Matrix
(D) File
(E) None of these
Answer: (A)

5.How many types of drawing objects are available in drawing Tool Bar ?
(A) 4
(B) 5
(C) 10
(D) 12
(E) None of these
Answer: (E)

6.Data processing is___
(A) data collection
(B) similar to computer programming
(C) associated with commercial work
(D) akin to data coding
(E) None of these
Answer: (C)

7.In computer terminology, information means
(A) Raw data
(B) Data in more useful
(C) Alphanumeric data
(D) Program
(E) None of these
Answer: (B)

8.What is meant by the term RAM?
(A) Memory which can only be read
(B) Memory which can be both read and written to
(C) Memory which is used for permanent storage
(D) Memory which can only be written to
(E) None of these
Answer: (B)

9. In UNIX, which command is used to sort the lines of data in a file in reverse order
(A) sort
(B) sh
(C) st
(D) sort –r
(E) None of these
Answer: (D)

10. The commonly used UNIX commands like date, ls, cat etc. are stored in
(A) /dev directory
(B) /bin directory
(C) /tmp directory
(D) /unix directory
(E) None of these
Answer: (B)

11. In UNIX, which command is used to change the protection mode of files starting with the string emp and ending with 1, 2 or 3 ?
(A) Chmod u+x emp[1-3]
(B) Chmod 777 emp*
(C) Chmod u+r ??? emp
(D) Chmod 222 emp ?
(E) None of these
Answer: (A)

12. The variables which can be accessed by all modules in a C program, are known as
(A) Local variables
(B) Internal variables
(C) External variables
(D) Global variables
(E) None of these
Answer: (D)

13. Which computer memory is used for storing programs and data currently being processed by the CPU ?
(A) Mass memory
(B) Internal memory
(C) Non-volatile memory
(D) PROM
(E) None of these
Answer: (B)

14. A record that follws a group of related records and contains data relevant to those records is called as....
(A) Trailer record
(B) Traffic record
(C) Transaction record
(D) Transducer
(E) None of these
Answer: (A)

15. A type of semiconductor memory that usually has small capacity but very fast access is
(A) PROM
(B) RAM
(C) Scratchpad
(D) ROM
(E) None of these
Answer: (C)

16. ____ is the study of molecules and structures whose size ranges from 1 to 100 nanometers.
(A) Nanoscience
(B) Microelectrodes
(C) Computer forensics
(D) Artificial intelligence
(E) None of these
Answer: (A)

17.A single pole, single throw switch with one common line and one output line is
(A) Switch circuit
(B) SPDT switch
(C) SPST switch
(D) Star bit
(E) None of these
Answer: (C)

18.A one-bit signal that indicates the start of data transmission by an asynchronous device is
(A) Parity bit
(B) Status bit
(C) Zero bit
(D) Star bit
(E) None of these
Answer: (D)

19.__ is data that has been organized or presented in a meaningful fashion.
(A) A process
(B) Software
(C) Storage
(D) Information
(E) None of these
Answer: (D)

20. The name for the way that computers manipulate data into information is called
(A) programming
(B) processing
(C) storing
(D) organizing
(E) None of these
Answer: (B)

21. Computers gather data, which means that they allow users to _____ data.
(A) present
(B) input
(C) output
(D) store
(E) None of these
Answer: (B)

22. After a picture has been taken with a digital camera and processed appropriately, the actual print of the picture is considered
(A) data
(B) output
(C) input
(D) the process
(E) None of these
Answer: (B)

23. A circut with about 100 transistors fabricated on a single chip is called
(A) MCR
(B) MSI
(C) MIS
(D) RJE
(E) None of these
Answer: (B)

Tuesday, April 10, 2012

COMPUTER KNOWLEDGE PRACTICE MCQs


1. ——Key combination that lets you toggle between open windows
a) ALT+SHIFT+TAB
b) ALT+CTRL+TAB
c) ALT+CTRL
d) ALT+TAB

2. When more than one window is open, to switch to the next window — is the key combination
a) CTRL+F5
b) CTRL+F6
c) CTRL+F7
d) CTRL+F8

3. To select or unselect one word to the right
a) CTRL+SHIFT
b) CTRL+SHIFT+Down Arrow
c) CTRL+SHIFT+Right Arrow
d) None of the above

4. To maximize or restore a selected window
a) CTRL+F7
b) CTRL+F10
c) CTRL+F8
d) CTRL+F9

5. To Copy a picture of the selected window to the clipboard
a) ALT+TAB
b) ALT+Print Screen
c) Both (a) and (b)
d) None of the above

6. —— Is the key to close a selected drop-down list; cancel a command and close a dialog box
a) TAB
b) SHIFT
c) ESC
d) None of the above

7. — Is the key we use to run the selected command
a) SHIFT
b) TAB
c) ENTER
d) CTRL

8. --- Is the functional key to display save as box
a) F5
b) F6
c) F9
d) F12

9. ----- Is the combination of keys to switch between the last four places that you have edited
a) ALT+CTRL+Z
b) ALT+CTRL+Y
c) ALT+TAB+Z
d) ALT+SHIFT+Z

10. To delete one word to the right
a) CTRL+SHIFT
b) CTRL+TAB
c) CTRL+DEL
d) CTRL+Z

11. --- Is the combination of keys we use to hide rows
a) CTRL+9
b) CTRL+8
c) CTRL+7
d) CTRL+6

12. To hide the columns --- is the functional key
a) CTRL+3
b) CTRL+2
c) CTRL+1
d) CTRL+0

13. --- Is the shortcut key to delete cells, rows or columns
a) CTRL+ Minus Sign
b) CTRL+ Plus Sign
c) CTRL+ Star Sign
d) CTRL+ Greater than Sign

14. To insert cells, rows or columns --- the keyboard shortcut key
a)CTRL+ Minus Sign
b)CTRL+SHIFT+ Plus Sign
c)CTRL+ Star Sign
d)CTRL+ Greater than Sign

15. —— Is the keyboard shortcut key to insert auto sum
a) ALT
b) ALT=
c) ALT+
d) ALT-

16. —— Is the shortcut key to move to the next worksheet
a) CTRL+Pagedown
b) CTRL+Pageup
c) CTRL+Right arrow
d) CTRL+Left arrow

17. —— Is the shortcut key to move to the previous worksheet
a) CTRL+Pagedown
b) CTRL+Pageup
c) CTRL+Right arrow
d) CTRL+Left arrow

18. — Key we use to select row
a) SHIFT+TAB
b) SHIFT+ Spacebar
c) CTRL+ Spacebar
d) SHIFT+ Enter

19. —— Key we use to select column
a) SHIFT+TAB
b) SHIFT+ Spacebar
c) CTRL+ Spacebar
d) SHIFT+ Enter

20. —— Is the key to exit from excel
a) ALT+F2
b) ALT+F3
c) ALT+F4
d) ALT+F5

21. A device, which is not connected to CPU, is called as —-
a) On-line device
b) Off-line device
c) Device
d) None of the above

22. What is the other name for programmed chip?
a) RAM
b) ROM
c) LSIC
d) None of the above

23. On-line real time systems become popular in ---- generation
a) First Generation
b) Second Generation
c) Third Generation
d) Fourth Generation

24. EDVAC stands for
a) Electronic Discrete Variable Automatic Computer
b) Electronic Discrete Value Automatic Computer
c) Electronic Device Variable Automatic Computer
d) Electronic Discrete Variable Advanced Computer

25. EDSAC stands for
a) Electronic Delay Storage Advanced Computer
b) Electronic Data Storage Automatic Computer
c) Electronic Delay Strong Automatic Computer
d) Electronic Delay Storage Automatic Computer

26. LSIC stands for
a) Large Scale Inner Circuits
b) Large Scale Integrated Computer
c) Large Scale Integrated Circuits
d) Large Storage Integrated Circuits

27. The task of performing operations like arithmetic and logical operations is called ----
a) Processing
b) Storing
c) Editing
d) Sorting

28. The ALU and Control Unit jointly known as
a) RAM
b) ROM
c) CPU
d) None of the above

29. RAM is an example of
a) Secondary memory
b) Primary memory
c) Both (a) and (b)
d) None of the above

30. Magnetic disk is an example of
a) Secondary memory
b) Primary memory
c) Both (a) and (b)
d) None of the above

31. A bit is an acronym for
a) Digit
b) Binary digit
c) Number
d) None of the above

32. Each memory cell has a unique number, assigned to it is called as the — of the cell
a) Address
b) Register
c) Number
d) None of the above

33. RAM is also called as
a) Read/Write Memory
b) Long Memory
c) Permanent Memory
d) None of the above

34. —— Store data or information temporarily and pass it on as directed by the control unit
a) Address
b) Register
c) Number
d) None of the above

35. The secondary storage memory is also called as
a) Auxiliary Memory
b) Attractive Memory
c) Chip Memory
d) None of the above

ANSWERS

1. A  2. B 3. C  4. B 5. B 6. C 7. C 8. D 9. A 10. C
   
11. A 12. D 13. A 14.  B 15.  B 16. A  17. B 18. B 19. C 20. C

21. B 22. B 23. C 24. A  25. D 26. C  27. A 28. C  29. B 30. A
   
31. B 32. A 33. A 34. B 35. A