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FILL IN THE BLANKS:
1.  The documents in Internet are called ------ Ans: pages.
2.  ---- is an example of a browser.   Ans: Netscape Navigator
3.  ----- strings of text that are links to other pages. Ans: hyperlink.
4.  When hypertext pages are mixed with other media the result is called ---             Ans: hypermedia.
5. --- tag means start of bold facemode.  Ans:
6. The commands inside the tag are called ---------  Ans: directives.
7. The logical styles defined in a document are called ----      Ans: style sheet.
8. The ---- tag starts unordered list.  Ans: 
    
9. 
     indicates ---- between text.  Ans: boundary.
10.  can be used for making ---- Ans: short tables.
11. ---- tag is used for making definition lists. Ans: 
    
12. --- tag describes that the page is going to be written in HTML. Ans: 
13. ------ tag delimits the page’s head.  Ans: 
14. ---- tag defines the title.    Ans: 
15. -----tag delimits the page’s body.   Ans: <BODY>
16. ---- tag sets in italics.    Ans: <I>
17. ---- tag brackets a numbered list.   Ans: <OL>
18. --- indicates start of a list item.   Ans: <LI>
19. ---- brackets a menu of <LI> items.  Ans: <MENU>
20. --- tag indicates start of a paragraph.  Ans: <P>
21. --- tag indicates horizontal rule.   Ans: <HR>
22. ---- tag is used to load an image.   Ans: <IMG SRC>
23. --- tag defines a hyperlink.   Ans: <A HREF>
24. CPU stands for -----    Ans: Central Processing Unit.
25. ALU stands for ----    Ans: Arithmetic and Logic Unit.
26. AM stands for ----     Ans: Amplitude Modulation.
27. PM stands for ---     Ans: Phase modulation.
28. FM stands for ----     Ans: Frequency Modulation.
29.  --- is used to monitor and restrict all file transfers between networks. Ans: Firewall
30.  A data packet is a packet header together with ----   Ans: user data.
31.  --- is the process of converting analog signals to digital signals. Ans: modulation.
32. The communication that supports two way traffic but only in one direction at a time is ----Ans: Simplex.
33.  The physical path that is used for sending information is called a ----  Ans: channel.
34. A half duplex communication channel permits information to -----                           Ans: travel both ways but not at once.
35. The simultaneous transmission of data to a number of stations is known as ----         Ans: Broadcast.
36.  DNS stands for --------             Ans: Domain Name System
37.  ISDN stands for ------      Ans: Integrated Services Digital Network.
38.  FTP stands for -------    Ans: File Transfer Protocol.
39.  IP stands for -----  Ans: Internet Protocol.
40. HTTP stands for ---------    Ans: Hypertext Transfer Protocol.
41.  WWW stands for ----- Ans: World Wide Web
42. HTML stands for ------ Ans: Hyper Text Markup Language.
43. ---- are links that can take the user to new page.  Ans: Hypertext
44. E mail stands for ------  Ans: Electronic mail.
45. E commerce stands for ----- Ans: Electronic commerce.
46.  ------ facilitates oral communication. Ans: Voice mail.
47. ------ allows two or more people who are geographically separated to communicate over the phone.      Ans: Audio conferencing.
48. ------ is an electronic meeting system that uses computers and networks.    Ans: video conferencing.
49. ------ is a term for communication tools that foster electronic communication in groups. Ans: Groupware
50. SMTP stands for -----   Ans: Simple Mail Transfer Protocol.
51. ---- technology uses telephones, modems and scanners to transmit text.       Ans: Fax
52. TCP stands for -----   Ans: Transmission control Protocol.
53. IP stands for -----    Ans: Internet Protocol.
54. AWT stands for -----   Ans: Abstract Window Toolkit.
55. ---- is an instance of a class.  Ans: Object.
56. ---- are the fastest computers   Ans: super.
57. RAM stands for -----   Ans: Random Access memory.
58. ROM stands for ----   Ans: Read only memory.
59. 1 Byte = ------ bits.   Ans: 8
60. OS stands for ----    Ans: Operating System.

STATE TRUE OR FALSE.

1. <Head> tag is used to indicate the start of a page.    T
2. <Title> tag is not displayed on the page.     T
3. <Head> tag indicates the page’s body.     F
4. <B> tag is used to indicate body of text.     F
5. <I> tag indicates italics.       T
6. <UL> tag indicates bulleted list.      T
7. <OL> indicates numbered lsit.      T
8. <LI> indicates brackets of list items.     F
9. <Menu> indicates start of a list item.     F
10. <L> indicates start of a paragraph.     F
11. <HR> indicates horizontal ruler.      T
12. <A HREF> is used to load picture.     F
13. <IMG SRC> is used to create hyperlink.     F
14. <DL> tag has two parts.       T
15. <HI> indicates headings.       T
16. DOS is an OS.        T
17. Super computers are the fastest computers.    T
18. Mainframe is a type of computer.      T
19. Hybrid is a combination of analog and digital computer.   T
20. Hard disk is a primary storage.      F
21. The size of a floppy disk is 1.44 MB.     T
22. First generation computers used transistors.    F
23. Printer is an input device.       F
24. Second generation computers used vaccuum tubes.   F
25. DHTML is an extension of HTML.     T
26. Frames are an option of Front Page.     T
27. IC stands for Integrated Circuit.      T
28. Page transition is an option in Format menu in Front Page.  T
29. A class can be derived from another.     T
30. Windows is an OS.       T
31. Keyboard is an input device.      T
32. Memory is the storage unit of the computer.    T
33. Style is an option in Front Page.      T
34. Threads are used in Java.       T
35. Java is a software.        F
36. The OSI model six layers.        F
37. The session layer decides the location of synchronization points.  T
38. The end to end delivery of the entire message is the responsibility of the
transport layer.         T
39. The data link layer is the layer closest to the transmission medium.  F
40. In the physical layer the data unit is called a frame.    F
41. Decryption is done in the session layer.      F
42. Encryption is done in the presentation layer.     T
43. Dialog control is a function of the session layer.     T
44. Mail services are available to network users through the application layer. T
45. Directory services are available to network users through the session layer. F
46. Node to node delivery of data is done by the data link layer.   T
47. As the data packets moves from the lower to the upper layers headers
are added.          F
48. As the data packets moves from the upper to the lower layers headers are subtacted.  F
49. The transport layer lies between the network layer and the session layer.  T
50. Layer 2 lies between the physical layer and the network layer.    T
51. In the session layer translations form one character code to another occur.  F
52. The physical layer changes bits into electromagnetic signals.    T
53. The data link layer can use frame for error detection.     T
54. Both data and signals that represent can take either analog or digital form.  T
55. A signal is periodic if it completes a pattern within a time frame.   T
56. Digital signals are classified as simple and complex.     F
57. Period refers to the amount of time.       T
58. The period of a signal is its number of cycles per second.    F
59. The phase refers to the position of the waveform relative to zero.   T
60. In digital signals 1 is positive voltage.       T

SHORT ANSWERS

1. What is a firewall.
2. Explain synchronous and asynchronous modes of data transmission.
3. Explain different types of multiplexing techniques.
4. Distinguish between TCP and UDP.
5. Explain Bus and Star topologies.
6. Explain different types of transmission technologies.
7. Explain different types of modulation.
8. What is a computer network. Explain its uses.
9. Briefly explain LAN, WAN and MAN.
10. Briefly explain satellite communication.
11. What is encoding and decoding.
12. What is multiplexing. Explain different types of demultiplexing
13. Compare and contrast twisted pair and coaxial cable.
14. Explain the features of optical fibre .
15. Define bit rate and baud rate.
16. What is a modem. What are its functions.
17. Write short notes on FDM.
18. Write short notes on TDM.
19. What is an error. What are the various types of errors.
20. What is checksum. Explain its functions.
21. What is error correction.
22. Explain CRC.
23. What is polling.
24. What is DNS.
25. What is email. What are its features.
26. Explain FTP.
27. What is telnet.
28. Describe briefly the physical layer.
29. Describe briefly the transport layer.
30  Descibe briefly the application layer.
31 What is hyperlink.
32. Define object and class with example.
33. What is inheritance.
34. What is encapsulation.
35. What is polymorphism.
36. What is abstraction.
37. What are threads.
38. Explain navigation option in Front Page.
39. Explain Tasks option in Front Page.
40. Explain Reports option in Front Page.
41. Explain Page option in Front Page .
42. What are the functions of ALU.
43. What are the functions of CPU.
44. What are the functions of control unit.
45. What are the functions of memory.
46. Explain any two input devices.
47. Explain any two output devices.
48. Explain the features of Ist generation computers.
49. Explain the features of IInd generation computers.
50. Explain the features of IIIrd generation computers.
51. Explain the features of IVth generation computers
52. Explain the features of analog computers.
53. Explain the features of digital computers.
54. Explain the features of hybrid computers.
55. Compare and contrast super and mainframe computers.
56. Compare and contrast micro and mainframe computers.
57. What is an OS. Explain with example.
58. Explain any two internal DOS commands with syntax.
59. Explain any two external commands with syntax.
60. Explain the classification of computers based on purpose.

ESSAYS:

1. Briefly explain different types of Network topologies.
2. Explain OSI reference model.
3. Describe briefly the various transmission media used.
4. What is multiplexing? Explain the various types of multiplexing.
5. Explain File transfer protocols.
6. What are digital signals and analog signals. Compare and contrast their characteristics.
7. Briefly describe the salient features of Internet.
8. What is a modem. What are the features of modems. Describe the different types of modems
9. List the difference between the functions of Bridges, Routers, and Gateways.
10. What is the difference between LAN, WAN and MAN.
11. Explain the various options  in the Format menu in Front Page .
12. Explain the various options in the Table menu in Front Page.
13. Explain the various options in the File menu in Front Page.
14. Explain the various options in the Frames menu in Front Page.
15. Explain the various views in Front Page.
16. What are the various data types in Java.
17. What is OOPs. What are the various concepts of OOPs.
18. Explain Application Programmer Interface in Java.
19. Explain Abstract Toolkit in Java.
20. Explain the generations of computers.
21. Explain the functional units of a computer.
22. Explain the classification of computers based on size.
23. Explain the classification of computers based on type of data used.
24. Explain the various types of printers.
25. Design the frame format of Ethernet (IEEE 802.3).
26. Explain the difference between thick and thin Ethernet.
27. Explain the various DHTML events.
28. Explain Event handler in DHTML with an example.
29. Explain the various controls (visual filters) in DHTML.
30. Explain the style sheets in DHTML.

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