UNIT TEST 7 : INFORMATION TECHNOLOGY- ANSWER KEY

1. Use of integrated circuits was made in

 First Generation Computers

 Second Generation Computers

 Third Generation Computers

 Fourth Generation Computers

2. The first mechanical calculator developed by

 Napier

 Blaise Pascal

 Charless Babbage

 IBM

3. Which type of memories is volatile?

 ROM

 PROM

 EPROM

 RAM

4. Computer Memory is measured in

 Bytes

 Kilobytes

 Megabytes

 All the above

5. Arrange the following chronologically according to their use in computers:

(i) Vacuum tube (ii) Microchip (iii) Integrated circuits (iv) Transistors

 (i), (iii), (ii), (iv)

 (i), (ii), (iii), (iv)

 (i), (iv), (iii), (ii)

 (ii), (iv), (iii), (i)

6. The Compact Disk is conceptually referred to as:

I. Magnetic Storage                         II. Compact Storage  

III. Optical Storage                           IV. All the above

Codes:

 I , II and III are correct

 II and III are correct

 I and III are correct

 II and IV are correct

7. Identify the correct order of the evolution of the following storage devices:

 DVD, Magnetic tape, Floppy, CD

 CD, DVD, Magnetic tape, Floppy

 Floppy, CD, DVD, Magnetic tape

 Magnetic tape, Floppy, CD, DVD

8. Which one of the sequences is in ascending order?

 Bytes, Gigabytes, Megabytes, Terabytes

 Bytes, Megabytes, Gigabytes, Terabytes

 Bytes, Terabytes, Megabytes, Gigabytes

 Megabytes, Bytes, Terabytes, Gigabytes

9. The distinguishing features of digital devices are:

(i) Speed (ii) Accuracy (iii) Timeliness (iv) Easy to Carry

 (i) and (ii)

 (ii) and (iv)

 (iv), (iii) and (i)

 (ii), (iii) and (iv)

10. Match the Following:

(a) Fax (b) CD-ROM (c) Floppy Disc (d) Circuit

(i) Optical Storage (ii) Magnetic Storage (iii) Switching System     (iv) Image transmission

 (iv) (i) (ii) (iii)

 (ii) (iii) (i) (iv)

 (i) (ii) (iii) (iv)

 (iii) (ii) (i) (iv)

11. Arrange the following in chronological order of their origin:

(i) Unix (ii) Ms-Dos (iii) Linux (iv) Windows

 (iv), (ii), (iii), (i)

 (ii), (i), (iv), (iii)

 (i), (iii), (iv), (ii)

 (iii), (i), (iv), (ii)

12. Arrange the following in the chronological sequence of their development.

(i) Pascal (ii) Cobol (iii) Fortran (iv) Basic

 (i) (ii) (iv) (iii)

 (iii) (ii) (iv) (i)

 (ii) (iv) (iii) (i)

 (iii) (iv) (ii) (i)

13. Linux is an example of

 Application software

 System software

 Library software

 All of the above

14. Major problems of ‘Information Communication Technology’ are

(i) Information overload (ii) Information insecurity (iii) Lack of innovative technologies (iv) Lack of control over communication

 (ii) and (iv) are correct

 (i) and (iv) are correct

 (i), (ii) and (iv) are correct

 (i), (ii) and (iii) are correct

15. A technique displaying graphic information on screen, pixel by pixel with bits held in main memory is

 Bit handling

 Bit mapping

 Bit pattern

 Bit matrix

16. A dot-matrix printer is a/an

 Input device

 Impact printer

 Non-impact printer

 None of the above

17. Microprocessor is

Used for processing of text

 Collection of programmes for computer system

 Revolving disc on which data is stored

 Graphical user interface working as DOS

18. LCD stands for

 Liquid Color Display

 Light Color Display

 Lithium Crystal Display

 Liquid Crystal Display

19. An individual small dot, which one sees on the computer screen is called

  Font

 Character

 Screen print

 Pixel

20. Which one of the following technique is best suited for Bank Cheques

 OCR

 BAR

 OMR

 MICR

21. The term “Bandwidth” refers to:

 The amount of data that can be sent through communication media

 The amount of data in a multimedia file

 The speed of transmission of data

 Number of bands available in a computer

22. The term “Hypertext” was coined by

 Vannever Bush

 John Brown

 M. C. Kith

 Ted Nelson

23. TCP/IP is necessary if one is to connect to the

 Phone lines

 LAN

 Internet

 A Server

24. Arrange the following layers of OSI model in the sequence in which they function:

(i) Network Layer              (ii) Physical Layer             (iii) Transport Layer        (iv) Data Link Layer

 (iii) (iv) (ii) (i)

 (iv) (ii) (i) (iii)

 (ii) (iv) (i) (iii)

 (i) (ii) (iii) (iv)

25. Which one of the following protocols is used in transferring file over internet?

 POP

 FTP

 SMTP

 TCP/IP

26. How different nodes in a network are connected and how they communicate is determined?

  By Network Connectivity

 By Network Topology

 By Network Compatibility

 None of the above

27. World Wide Web was first designed by

 Charles Babbage

 F.W. Lancaster

 Ted Nelson

 Tim Berner’s Lee

28. Which one of the following is not a switching system?

 Packet

 Circuit

 Router

 Message

29. Hub refers to

  A physical layer device used to interconnect the media segments of an extended network

 A physical layer device that connects multiple computers each via a dedicated cable

 Multiple bridges known for transfer of data between different parts

 A straight line data highway that carries network information from one network station to another

30. In the World Wide Web, name the acronym that describes the internet address of a file

 ULA

 RELUR

 URI

 URL