Rajasthan Technical University 2010-5th Sem B.Tech Computer Science and Engineering (Main) , -/- 2011 5CS3 Telecommunication Fundamentals - Question Paper

B.Tech Vth Semester (Main) Examination, Dec.-2010/Jan. 2011
Computer Science
5CS3 Telecommunication Fundamentals
(Common for Computer & IT)

Unit-I

1.
a) Describe channel capacity. Compare the transmission media: twisted pair and coaxial cable. [Marks 8]
b) Explain antenna gain in wireless transmission. elaborate free space losses in LOS Communication. [Marks 8]

OR

a) Compare OSI and TCP/IP network reference models. [Marks 8]
b) Explain the need of line coding. provide specific properties of line coding. [Marks 8]


Unit –II

2.
a) Explain the functions performed by data link layer. [Marks 8]
b) Name a few of the linear code with brief notes. [Marks 8]

OR

a) Explain standardized polynomial codes. [Marks 8]
b) Describe stop and wait protocols for fault control. [Marks 8]


Unit-III

3.
a) Compare pure and slotted Aloha. provide through-put analysis of pure and slotted Aloha. [Marks 10]
b) Describe the functions of MAC sublayer. [Marks 6]

OR

a) Describe CSMA protocols. provide through put analysis of CSMA and CSMA/CD. [Marks 8]
b) Describe HDLC and PPP. [Marks 8]


Unit –IV

4.
a) Compare TDM and FMD. [Marks 8]
b) Describe space division and time division switching. [Marks 8]

OR

a) Explain TDMA Burst structure and super frame structure. [Marks 8]
b) Explain ADSL with specific features. [Marks 8]


Unit –V


5.
a) Why we go for spread spectrum technique. define time hopped and frequency hopped spread spectrum. [Marks 10]
b) What is IMT- 2000 [Marks 6]

OR

a) Explain the generation of PN sequence. [Marks 8]
b) Describe the subsequent :
i) Gold sequence
ii) Walsh codes synchronization. [Marks 8]

Earning:   Approval pending.