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Sunday, April 15, 2012

COMPUTER KNOWLEDGE PRACTICE MCQs


Question 1: Which of the following is not part of the data link layer?
1. Transports data across the physical link
2. Performs physical addressing
3. Performs flow control
4. Determines network topology
5. Terminates a session
Answer: 5.

Question 2: A sensor that informs a body computer about temperature, such as an ambient air temperature sensor for A/C is a:
1. potentiometer.
2. hall-effect switch.
3. thermistor.
4. thermodiode.
Answer: 3.

Question 3: Which of the following is single user computer with many features and good processing power?
1. Minicomputer
2. Workstation
3. Macintosh
4. None of these
Answer: 2.

Question 4: Computer ethics has its own roots in the work of ________during the World War II
1. Nobert Wiener
2. Herman Hollerith
3. Robert Wiener
4. Herman Wiener
Answer: 1.

Question 5: The windows registry consists of which two files?
1. autoexec.bat and config.sys
2. user.dat and win.ini
3. user.dat and system.dat
4. win.reg and user.dat
Answer: 3.

Question 6: Which Open Systems Interconnections (OSI) layer does IP belong to?
1. Session layer
2. Data link layer
3. Transport layer
4. Network layer
Answer: 4.

Question 7: Keyboard is an ............
1. Input device
2. Memory device
3. Output device
4. None of the above
Answer: 1.

Question 8: The destroyList() member function deletes the contents of the linked list and
1. does not delete the linked list itself
2. delete the linked list itself
3. adds the linked list itself
4. None of the above
Answer: 1.

Question 9: The Objective of testing is-
1. Debugging
2. To uncover errors
3. To gain modularity
4. To analyze system
Answer: 2.



Question 10: In token Ring , when a frame reaches its destination station, which of the following occurs?
1. the message is copied
2. four bits in the packet are not changed
3. the message is take off the ring and replaced by the token
4. the message is removed from the buffer
Answer: 1.

Question 11: MSword what is the short cut of paste
1. CTRL+V
2. CTRL+A
3. CTRL+C
4. CTRL+F
Answer: 1.

Question 12: In digital computer, all the expressions are coded into ...........
1. Octal digits
2. Binary digits
3. Hexadecimal digits
4. Decimal digits
Answer: 2.

Question 13: The purpose of the _______ layer is to transport a raw bit stream from one machine to another
1. Physical Layer
2. Data Link Layer
3. Network layer
4. Application Layer
Answer: 1.

Question 14: Register is a
1. Set of capacitors used to register input instructions in a digital computer
2. Set of paper tapes and cards put in a file
3. Temporary storage unit within the CPU having dedicated or general purpose use
4. part of the auxiliary memory
Answer: 3.

Question 15: Identify the directives of JSP.
1. page, include, and taglib
2. include, autoFlush, and taglib
3. page, import, taglib, and buffer
4. contentType, include, and taglib
Answer: 1.

Question 16: A(n) ____________ system is a small, wireless handheld computer that scans an item’s tag and pulls up the current price (and any special offers) as you shop
1. PSS
2. POS
3. inventory
4. data mining
Answer: 1.

Question 17: Which one of the following is the valid SAX enabled parser?
1. XML4J
2. XML Parser
3. DTD Parser
4. Tool Parser
Answer: 1.

Question 18: In the following the fastest computer constituent is
1. CPU
2. Magnetic Tape
3. Video Terminal
4. Sensors and Mechanical controllers
Answer: 1.

Question 19: DSDD is
1. Double Sided Double Density
2. Dual Sided Double Density
3. Double Sided Dual Density
4. Dual Sided Dual Density
Answer: 1.

Question 20: Which among the following is a software based virtual computer
1. Digital immune module
2. CPU emulator
3. Virus signature scanner
4. Emulation control module
Answer: 2.

Question 21: The operation of subnet is controlled by _ _ _ _ _ _ _ _
1. Network Layer.
2. Data Link Layer
3. Data Layer
4. Transport Layer
Answer: 1.

Question 22: Which one of the following files forms a link to the physical devices and peripherals on a system?
1. Regular files
2. Directory files
3. Device special files
4. Link files
Answer: 3.

Question 23: Name the latest version of Windows
1. Windows 3.1
2. Windows NT
3. Windows 98
4. Windows Vista
Answer: 4.

Question 24: A trie structure is a complete _ _ _ _ _ _ _ _ _ _ _ _ _ tree [19S04]
1. binary
2. search
3. B-tree
4. m- ary
Answer: 4.

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)