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B.Tech. IT 4th Sem Subject: Computer Network
UNIT – 1 Network topologies, synchronous and asynchronous transmission, error detection techniques like parity check, LRC and CRC (Cyclic Redundancy check).
UNIT – 2 Circuit switching, circuit switched networks, switching concepts, space division switching, time division switching. Packet switching: Packet switching principles, switching techniques, comparison with circuit switching, routing and congestion control algorithms, introduction to spread spectrum and its applications.
UNIT – 3 Uses of Computer Network, Network hardware, Layered Architecture, function of the layers, Network Standardization, OSI & TCP/IP Reference model, Physical layer services & hardware protocols. DATA LINK CONTROL: Framing, Flow Control, Stop and wait Protocols, Sliding Window Protocols, Error Detection & Error Control, High Level Data Link Control ( HDLC), Pure ALOHA & Slotted ALOHA.
UNIT – 4 NETWORK LAYER & TRANSPORT LAYER Network Layer Protocols, Design issues, Virtual Circuits and datagram’s, Routing Algorithms, Optimality principle, Shortest path routing, Dijkstra’s algorithms, Distance Vector routing, Link state routing, Flow and Congestion Control, packet discarding, Traffic shaping, Choke Management, Establishment and releases, TCP & UDP.
UNIT – 5 UPPER LAYERS Session Layer Protocols, Dialog Management, Synchronization, Presentation layer functions, translation, encryption, compression, Cryptography, substitution and Transposition Ciphers, Data Encryption standards (DES), Public Key cryptography, Authentication protocols, Different compression coding techniques. Application layer protocols & services, Email, World Wide Web (WWW), file, transfer protocol, remote file server, Internet telephony & chatting.
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