CAPP(7)
2014
1. (a) What is Data communication ? Write its advantage and disadvantage. (5)
(b) What are the various types of Network? (5)
2. (a) Describe any Five communication tasks performed by a computer Network? (5)
(b) What is meant by Topology? Name the most popular topologies. (5)
3. What is transmission media? Describe their types with example. Give an advantages and disadvantages for each type of transmission media. (10)
4. (a) Explain the term bandwidth. why is bandwidth useful? (5)
(b) List the basic components (equipments) in order to connect a computer to the internet. (5)
5. (a) What is transmission impairments? (5)
(b) Describe co-axial cable and its use. (5)
6. what are the communication modes of HDLC? Describe each of them. (10)
7. What are major multiplexing techniques? (10)
8. (a) What is cryptography ? Define different types of cryptography also. (5)
(b) What is Digital signature?(5)
9. (a) What do you understand by flow control? Describe the mechanism in stop and wait flow control. (5)
(b) What do you understand by IEEE? Explain any five standard. (5)
10. Differentiate between: 5*2=10
(a) Circuit switching and Packet switching.
(b) Analog signal and Digital signal.
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8. Explain Beliman Ford algorithm with a suitable example.
9. what do you mean by CSMA? Discuss CSMA / CD and CSMA/CA with suitable example.
10. Write short notes on any Two of the following:
(a) Digital signature
(b) Public key encryption
(c) Token Ring
(d) Guided Transmission media.
2017
1. (a) Compare and contrast between synchronous and Asynchronous transmission using an example for each.
(b) What is FDM? Write its advantages and disadvantages.
2. Write short notes and an advantages and one disadvantage of the following:
(a) HUB
(b) Bridge
(c) Repeater
(d) Modem
(e) Switch
3. Compare and Contrast the GO-BACK-N ARQ protocol with selective Repeater ARQ with suitable figure.
4. Brief explain the function to different layers of OSI model.
5. (a) What is FDDI? Discuss the frame structure for FDDI?
(b) Write short notes on Network Operating System.
6. What are networking topologies? Define in detail.
7. What is the main purpose of multiplexing in data communication ? Define and differentiate between TDM and FDM with suitable example.
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2016
(b) What is the Internet ? can it be classified as a LAN, WAN, or MAN.
2. Explain CRC? Give a suitable example for the bit message M using the predefined divisor P.
M= 11001110001
P= 1101
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