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2003 Course High Performance Networks

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Total No. of Questions : 12] P1171 [Total No. of Pages : 3 [3664]-348 B.E. (Computer) HIGH PERFORMANCE NETWORKS (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answer any three questions from each section. 2) Answers to the two sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary. 4) Figures to the right indicate full marks. 5) Assume suitable data, if necessary. SECTION - I Q1) a) Discuss in short about 1000 BASE - X Family with suitable applications. [8] b) Explain why half duplex operation of Gigabit Ethernet incorporates Carrier Extension. What are its drawbacks. [8] OR Q2) a) What is medium independent interfacing? Differentiate among all 3 interfaces used in 10,100 and 1000 mbps Ethernet (At least 4 points).[8] b) Explain in short the need of flow control in gigabit Ethernet? How it is [8] supported? Q3) a) Draw the LAPF Protocol Frame Format. What is the significance of DLCI? [6] b) Explain the need and significance of TE1, NT2 and TA functional groups specify suitable example which represents TE1 and TE2. [8] c) Explain the terms FECN and BECN. What is their significance in a frame relay network. [4] OR Q4) a) A company has H.O in Pune and two branch offices in Mumbai and Bangalore. Draw a logical diagram of full mesh frame relay network with suitable IP addresses, which would facilitate the communication among these sites. [4] P.T.O.

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