August 21, 2019
Amitraj
B.C.A. Second Year
(Effective from session 2019-21)
BCA 201: Computer Communications and Networks
UNIT-I
Protocol Architecture: Overview: Communication model, Data, Protocol and protocol architecture, Protocol functions, Design Issues for the layers, interfaces & Services, Connection oriented and connectionless services, service primitives, relationship of services to protocols , OSI Models, TCP/IP Model.
Communication Networking: Networks fundamentals, types of networks( LAN, MAN, WAN, Wireless Networks),
Internetworking and networking devices: Switch/Hub, Bridge, Router, Gateways and firewalls.
UNIT-II
Data Communications: Channel capacity Nyquist bandwidth, Shannon capacity formula, Transmission media: Coaxial, twisted pair, Comparative study of Categories of cables, Coaxial, Optical Fibers, Wireless transmission: radio, microwave, infrared.
Data Encoding: Encoding Standards (NRZ, Bipolar, ASK, FSK, PSK, PCM, AM, FM, PM), Spread Spectrum, Asynchronous and Synchronous transmission, Full and Half duplex communication.
UNIT-III
LAN Technology: LAN architecture, IEEE 802 standards, Ethernet ( CSMA/CD): Medium Access Control, 10Mbps, 100Mbps, Gigabit Ethernet. Brief survey of other LAN systems (Token ring,FDDI,ATM, Fiber channel). Latest trends in LAN technologies
UNIT-IV
Data Link Control: Flow control: Stop and Wait, Sliding window, Error detection: Parity Check, CRC. Error control: Stop and Wait ARQ, Go back-N ARQ, Selective-Reject ARQ, Bit and byte oriented protocols: HDLC and PPP)
Circuit and packet Switching Concepts: Circuit Switching Networks, Space Division switching, Time Division Multiplexing, Brief idea of SS7, Packet switching principles, virtual circuits and datagram's, brief idea of X.25
UNIT-V
IP addressing and subnetting: IP address Classes, subnets, Classful and classless addressing, Introduction to ARP and RARP, header formats of IPv4 IPv6.
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