BCA 31 Data Communication Assignment A 1) What is a Computer network? Explain different type of networks. 5 Marks 2) Explain with neat diagram OSI reference model. Also explain the functions of each layer. 10 marks 3) Explain time domain and frequency domain concepts. 5 marks 4) What multiplexing? Explain FDM and TDM.
5 marks
Assignments B 1) With neat diagram explain a) twisted pair, b) co-axial cable, and c) Fiber optical cable. 8 marks 2) Explain different error control mechanisms. 7 marks 3) Explain the characteristics of HDLC. 4) Explain different LAN topologies
5 marks 5 marks