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Posted Date: 04 Sep 2008 Posted By: prashanth beerelli Member Level: Diamond
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2006 Jawaharlal Nehru Technological University Computer Science & Engineering III B.Tech I Semester Regular Examinations, November 2006 DATA COMMUNICATIONS Question paper
Code No: RR310503 Set No. 2
III B.Tech I Semester Regular Examinations, November 2006
DATA COMMUNICATIONS
( Common to Computer Science & Engineering, Information Technology
and Computer Science & Systems Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. Explain Analog transmission for Analog signal, and Digital transmission for Analog
signal clearly with examples. [16]
2. What are the various types of Data Communication codes and explain briefly about
each code? [16]
3. (a) What is a Protocol?
(b) Draw the block diagram of ISO OSI model and explain. [3+13]
4. (a) What is TOKEN bus and explain?
(b) What is the difference between TOKEN bus and TOKEN ring? [8+8]
5. (a) Give slot and segment formats of DQDB.
(b) Discuss about SMDS internetworking protocol architectures. [6+10]
6. (a) What is ISDN? Describe the services provided by it.
(b) Discuss the evolution of ISDN. [10+6]
7. (a) Differentiate between PVC and SVC in frame relay.
(b) Discuss about different frame relay layers. [6+10]
8. (a) Discuss the physical configuration of SONET system. Also give an example
of a SONET network.
(b) Explain the four functional layers of SONET standard.
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