DATA COMMUNICATION

External Marks: 60 L T P
Internal Marks: 40 3 1 -
Total Marks: 100
PREREQUISTES: None
OBJECTIVES:
This course provides knowledge about various types of Network, Network Topologies ,
protocols .
COURSE CONTENTS:
Introduction: Uses of Computer Networks, Network Hardware, Network Software,
seven-layer OSI architecture of ISO, concepts of layer protocols and layer interfaces,
TCP/IP reference model, comparison of OSI &TCP/IP reference models[20%]
Physical Layer: Transmission media , telephone system (structure, trunks , multiplexing
and switching), wireless transmission , [15%]
Data Link Layer: Design Issues, Error detection and correction , elementary data link
protocols , sliding window protocols.[20%]
Medium Access Sub layer: The channel allocation , IEEE standards 802 for LAN &
MAN.
Network Layer: Design issues , routing algorithms, Congestion control Algorithims, IP
protocol , IP addresses, Sub nets.[15%]
Transport Layer: Treansport Services, Elements of Transport protocols, TCP service
Model , protocol, Header.[10%]
Application Layer: Network security , DNS . E-mail , world wide web,
multimedia.[10%]