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Fif'th Sernester B.E. Degree Exarnination, Dec.2015,6an.2016 Gomputer Networks .- I Note: Answer FIVE.full questioms, selecting ut least TWO questions from eack purt" o O

PART - A

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1a. b.

(&5 &6arks) Define network. With a neat diagram, explain the four basic topologies. Witir the heip of a diagrarn, explain the functionalities of each layer of OSI reference model.

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Five channels, each with a 100 kHz bandwidth are to be multiplexed, toge&er. What is the minimum bandwidth of the iink is there is a need for a guard band c,f l0 kFfz between tire channels to prevent interference? {{}3 Marks}

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6a.

b.

7a. b.

8a. b"

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with a neat diagram, explain unr Explain the frarne fonnat of HDI-C protocol.

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How does datawords and codewords is represented in blcrck coding and also explain how (1S Marks.g cffl errors be detected and corrected by using block coding. 001101" (tr& Marks) Find the code word using CRC given data and generator "1100".

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Represent the sequence "0100111C)" using i.'lRZ-L,

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is line coding?

(s;l\earks) What is TDM? Explain in detail. Explain virtual circuit network with an example, and also briefly discuss the phases.

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Defirie latency. Briefly explain the components of latency. What are the propagation time and transmission time for a 5 Mby.te message (image), if the bandwidth cf ths netv.ro;"k is 1 Mbps? Assurne that the distance between the sender and receiver is 12000 knt and that (08 Marn
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in an intemet employing the TCPiE) (&5 S{arks}

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Max. Marks:100

Time: 3 hrs.

noisy channel.

(12 Marks) (CI8

&farks)

Describe pure ALOHA and slotted ALOHA. What is channelization? List and explain the channelizatron prrctocols.

(tr0 Marks)

Explain the different types of addressing mechanism in IEEE 802..11. Define Bluetoo,th and explain the architecture of Bluetooth. With a neat diagram, explain the categories of connecting devices.

(S5 Vtrarks)

Exptrain classful addressing and classless addressing with respect to IPV4.

(08 Marks)

Explain in detail IPV6 packet format. Give a comparison between IFV4 and iPV6.

(0E &tarles)

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Computer Networks 1 Jan 2016 (2010 Scheme).pdf

Page 1 of 1. USN xCIcs55. Max. Marks:100. (&5 &6arks). Fif'th Sernester B.E. Degree Exarnination, Dec.2015,6an.2016. Gomputer Networks .- I. Note: Answer ...

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