CP1341: COMPUTER NETWORKS AND SECURITY
SYLLABUS
Module I:
Introduction to networks – Data Communication – Data flow simplex, Half duplex, Full duplex-Type of Connection – broadcast, Point–to-Point, multidrop. Bandwidth- bit rate, baud rate. Transmission media –Copper wires, fibre optics, Radio transmission, microwave, Satellite. Switching - circuit, packet, message.
Module II:
Network software - standards- Layering, packets, Layered PDUs, ISO-OSI model, TCP/IP model – Comparison. Framing- bit oriented, byte oriented, Error correction – detection – parity, hamming code, CRC. Flow control – stop and wait, sliding window, Error control - Stop &wait ARQ,Go Back N ARQ, Piggybacking, pipelining, Ethernet, Multiple Access Protocols - pureslotted ALOHA, CSMA, CSMA/CD. LAN Standards, Token bus, Token ring, Interfacing devices – bridge, hub, switch, router, gateway.
Module III:
Internetworking- datagrams, fragmentation – Routing-Flooding, Distance vector routing, Link state routing. Concepts of congestion control-leaky bucket algorithm. Process to Process delivery TCP, UDP, Application Layer - DNS, Remote login, file transfer protocol (FTP).
Module IV:
Information Security: Network security – concepts and policies, cryptography -encryption, ciphers, steganography, symmetric and public key encryption, RSA algorithm, authentication methods, message digest, digital signatures, DSS, E-mail security, MIME, IP Security, Web Security: Secure Socket layer. Malicious Software, viruses & anti-virus software, firewall. Security and Law: - Regulations in India. Indian Copyright Act, Consumer Protection Act. Future Trends – The Law of Convergence.
4. REFERENCES
4.1 Core
1.Brijendra Singh, Data Communication and Computer Networks, 3/e, PHI 2.Brijendra Singh, Cryptography & Network Security, PHI. 3.Pachghare, V.K., Cryptography and Information Security, PHI