Online | Offline Tuitions for Computer Networks
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UNIT – 1
Basic Concepts: Components of data communication, distributed processing, standards and organizations. Line configuration, topology, transmission mode, and categories of networks.
OSI and TCP/IP Models: Layers and their functions, comparison of models.
Digital Transmission: Interfaces and Modems: DTE-DCE Interface, modems, cable modems.
Transmission Media: Guided and unguided, Attenuation, distortion, noise, throughput, propagation speed and time, wavelength, Shannon Capacity, comparison of media.
UNIT – II
Telephony: Multiplexing, error detection and correction: Many to one, one to many, WDM, TDM, FDM, circuit switching, packet switching and message switching.
Data Link control protocols: Line discipline, flow control, error control, synchronous and asynchronous protocols, character and bit oriented protocols, Link access procedures.
Point to point protocols: Transmission states, PPP layers, LCP, Authentication, NCP.
ISDN: Services, historical outline, subscriber’s access, ISDN, Layers, and broadband ISDN.
UNIT – III
Devices: Repeaters, bridges, gateways, routers, The Network Layer, Design Issues, Routing Algorithms, Congestion Control Algorithms, Quality of Service, Internetworking, Network-Layer in the Internet.
UNIT – IV
Transport and upper layers in OSI Model: Transport layer functions, connection management, Functions of session layers, Presentation layer, and Application layer.
TEXT BOOKS:
1. A. S. Tanenbaum, “Computer Networks”; Pearson Education Asia, 4th Ed., 2003.
2. Behrouz A. Forouzan, “Data Communication and Networking”, 3rd edition, Tata Mc Graw Hill, 2004.
REFERENCES:
1. D. E. Comer, “Internetworking with TCP/IP”, Pearson Education Asia, 2001
2. William Stallings, “Data and computer communications”, Pearson education Asia, 7th Ed., 2002.
