DATA NETWORKS

Paper Code: 
CBCA 402
Credits: 
03
Periods/week: 
03
Max. Marks: 
100.00
Objective: 

This module will help students to learn various Data Communication and networking concepts.

9.00
Unit I: 

Data Communications: Components, Data Representation and Data flow; Networks: Distributed Processing, Network Criteria, Network Models, Categories of networks and Internetwork; Internet and Protocols and Standards.

Network Models: Layered tasks, the OSI model, Layers in the OSI Model, TCP/IP protocol Suit, Addressing.

9.00
Unit II: 

Data and Signals: Analog and Digital Data, Analog and Digital Signals, Periodic and Non periodic Signals, Transmission impairment, Data rate limits and Performance. Transmission modes. Transmission Media: Guided media (Twisted Pair Cable, Coaxial Cable & Fiber-Optic Cable) and Unguided media (Radio wave, Microwave, Infrared & Light wave).

9.00
Unit III: 

Digital Transmission: Digital to Digital Conversion:- Line coding(Unipolar, Polar & Bipolar), Block Coding(4B/5B & 8B/10B), Scrambling(B8ZS & HDB3), Analog to Digital Conversion: PCM & DM, Digital to analog conversion : ASK,FSK,PSK & QAM,  Analog to Analog conversion: Amplitude Modulation, Frequency Modulation & Phase Modulation. 

Multiplexing: FDM, WDM, Synchronous TDM and Statistical TDM.

9.00
Unit IV: 

Switching: Circuit switched networks, message switching & packet switching. Datagram networks, Virtual Circuit networks. Error Detection and Correction: Introduction, Block coding: Hamming Distance & Parity bit, linear block codes, cyclic codes: CRC, VRC & LRC, and Checksum.

9.00
Unit V: 

Data Link control: Framing, Introduction of Flow and Error Control. Elementary Data Link Protocols: - Simplest Protocol, Stop & Wait Protocol and Simplex protocol for a Noisy channels. Sliding window Protocols:- one bit sliding window protocol, Go-Back-N Protocol, Selective Repeat Protocols.

ESSENTIAL READINGS: 
  1. Behrouz A. Forouzan, “Data Communication and Networking”, 4th edition, Tata McGraw Hill, 2006.
REFERENCES: 
  1. A. S. Tanenbaum, “Computer Networks”, Pearson Education Asia, 4th Ed., 2003.
  2. William Stallings, “Data and computer communications”, Pearson education Asia, 7th Ed., 2002.
Academic Year: 
2019-20
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