III-B.Tech. II-Semester Supplementary Examination December 2002/January 2003
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DATA COMMUNICATIONS (Common to Computer Science & Engineering and Computer Science & Information Technology) Time:3 hours Max.Marks:70 Answer any FIVE questions All questions carry equal Marks ---
What is a constellation diagram ? How it is used with PSK? Explain the minimum band width required for a BPSK system and the bit rate. Explain M-ary
2.a)
What are the fundamental components determining FSK demodulation performance and how are they related? Why is clock recovery required in a BPSK demodulator circuit?
b)
or ld
1.a) b) c)
Explain the basic concept of modem and shows the relationship of modems to a communication link with neat block diagram.
4.a)
What are the benefits of implementing high speed serial interface technology in a network ? What is the use of line control unit?
b)
uW
3.
Explain the meanings of control characters of bisync protocol. Explain with relevant diagrams, the data transfer phase of the bisync protocol.
6.
What is supervisory signaling? Compare fixed and variable data rate mode .
7.a) b) c)
What is composite base band signal and base band ? Describe the formation of group with block diagram and output Spectrum. List the channel carrier frequency and group carrier frequency.
8.a) b)
What is the difference between a general pole and a specific pole. Explain logical operation of line-sharing adapters.
DATA COMMUNICATIONS · (Common to Computer Science & Engineering and Computer Science & · Information Technology) · Time:3 hours · Max.Marks:70 · Answer any FIVE questions · All questions carry equal Marks · --- · 1.a) What is a constellation diagram ? How it is used with PSK? b) Explain the minimum band ...
6.a) List three basic requirements for a good rolling lubricant. b) A 300 mm wide aluminum alloy strip is hot-rolled in thickness from 20mm to · 15mm. The rolls ...
[8+8] · 2. (a) Describe the concept of automation in Machine Tools with examples. ... [8+8] · 5. (a) Describe the design and fabrication of automated flow lines.
(iii) Peak discharge using Snyder's equation for an unit hydrograph of 6 hour duration. Assume Ct=1.2, Cp=5, L=82 km, Lca=48 km with usual notations. [8+8].
6.a) Discuss the relative requirements of foundry furnaces suitable for melting Alluminium · and Copper alloys. b) Why is not the cupola furnace used for melting ...
sender and receiver side. The protocol we check appears both in a .... The action is a sequence of statements, exe- cuted when the condition holds. in addition, ...
Q1. a). Define Intra abdominal compartment syndrome. b). Explain its etiology and pathophysiology. c). Describe its nursing management. 2+3+5=15. Q2 a). Define Open Heart Surgery. b). Classify Open Heart Surgeries. c). Discuss Nursing Care plan of pa
b) State the characteristics of an ideal crusher. c) Discuss the characteristics of comminuted particles. [4+4+8] · 4.a) Write about the construction and working of a ...
We will explore rationing and will try to recreate living conditions of the time. we will also be reading a book about two children who travelled back in time to save ...
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b) Write in detail the classical theory of diamagnetism. [8+8] · 5.a) Explain Fermi-Dirac distribution for electrons in a metal. Discuss its variation · with temperature.
