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Course Code: BCA109 Course Title: Data Communication and Computer Networks L T P 3 1 0 C 4 UNIT I: 08-LECTURES Introduction and Physical Layer: Key concepts of computer network, transmission media, network devices, network topology, topology design issues, types of network: LAN, MAN, WAN, PAN, ISDN systems and ATM network, OSIreference model, open system standards, characteristics of network, TCP/IP model, protocols and standards, encoding technique. UNIT II: 10-LECTURES Switching and Data Link Layer: Circuit switching, packet switching, message switching, hybrid switching, and ATM switching, multiplexing techniques: TDMA, FDMA, WDMA, CDMA, data link layer: LLC & MAC level protocols and design issues, issues IEEE 802 LAN Standards, framing, CRC, error control, flow control, HDLC, ALOHA and performance issues. Frames relay networks and performance parameters. UNIT III: 10-LECTURES Network Layer:Network layer design issues, overview of IPv4 and IPv6, addressing: class full and classless, static and dynamic, subnet and supernet, auto configuration through DHCP, routing protocols: RIP, DVR,LSR, OSFP, BGP, congestion control algorithm, subnet concept, virtual LAN, ICMP, multicasting, mobile IP. UNIT IV: 09-LECTURES Transport Layer:Port addressing schemes, connectionless and connection oriented services: TCP and UDP, wireless TCP, Congestion control, queue management, NAT, PAT, socket format at transport level, socket interface and programming. UNIT V: 08-LECTURES Application Layer: Client server architecture, domain name services, application services: HTTP, TELNET, RLOGIN, FTP, CBR, NFS, SMTP, POP, IMAP, MIME, voice and video over IP. TEXT BOOKS: Data Communications &Networking, A. Behrouz Forouzan, Tata McGraw Hill, 5th Edition. REFERENCE BOOKS: Computer Networks, S. Tanenbaum, Prentice Hall, 2008, 4th Edition. Data and Computer Communications, W. Stallings, Prentice Hall, 2007, 8th edition. TCP/IP Principles, Protocols and Architecture, Douglus E. Comer, Pearson Education, Revised Edition.