Rajasthan Technical University 2009 B.C.A Computer Application University of Rajasthan part-II (Electronic Communication and Data Communication) - Question Paper

Bachelor of computer applications (part II)

Examination, 2009

Paper 219

Electronic Communication and Data Communication

Q.1 (a) What is modulation? discuss various kinds of modulation techniques.
(b) Write a note on wave division multiplexing.

Q.2 (a) What is the frequency range of radio communication? discuss methods used to propagate radiowaves.
(b) Explains the principles of fibre optic transmission.

Q.3 (a) What do you mean by microwave in communication? discuss various kinds of antennas used in microwave
communication with the help of improper diagrams.
(b) Explains kinds of bipolar encoding.

Q.4 (a) explain the concept of redudency in fault detection and also discuss various kinds of redudency
checks used in data communication.
(b) Write a note on Duobinary signaling and decoding.

Q.5 (a) What is the difference ranging from basic rate interface and primary rate interface with respect to ISDN?
(b) What is the relationship ISDN layers and OSI model layers?

Q.6 (a) Exp[lain the application area of SONET.
(b) Why are communication satelliates in geo-synchronous orbit?

Earning:   Approval pending.