Overview of Data Communications and Networking
Physical Layer : Analog and Digital, Analog Signals, Digital Signals, Analog
versus Digital, Data Rate Limits, Transmission Impairment, More about signals.
Digital Transmission: Line coding, Block coding, Sampling, Transmission mode.
Analog Transmission: Modulation of Digital Data; Telephone modems,
modulation of Analog signals.
Multiplexing: FDM 150, WDM 155, TDM 157
Transmission Media: Guided Media, Unguided media (wireless)
Circuit switching and Telephone Network: Circuit switching, Telephone network.
Data Link Layer: Error Detection and correction: Type of Errors, Detection, Error
Correction. Data Link control and protocols: Flow and error Control, Stop-andwait ARQ, Go-Back N ARQ, Selective Repeat ARQ, HDLC.
Point-to-Point Access: PPP
Point-to Point Protocol, PPP Stack
Multiple Accesses: Random Access, Controlled Access, Channelization.
Local area Network: Ethernet
Traditional Ethernet, Fast Ethernet, Gigabit Ethernet
Wireless LANs: IEEE 802. 11, Bluetooth virtual circuit: Frame Relay and ATM
Network Layer: Host to Host Delivery: Internetworking, addressing and Routing
Network Layer Protocols: ARP, IPVA, ICMP, IPV6 ad ICMPR6
Transport Layer; Process to process Delivery: UDP; TCP congestion control and
Quality of service.