Computer Networks

Introduction:  -  History  of  Network  Developments,  Network  Hardware,  Network
Software.  Mode  of  transmission:  -  Asynchronous  and  Synchronous  Transmission,
Half and Full duplex Transmission, Concept of DTE and DCE, Concept of Intrefacing
DTE  and  DCE.  OSI  Reference  Model  (7  Layers):-  Functions  of  each  OSI  Model
Layer.   The   Physical   Layer:   -   Transmission   media,   Introduction   to   various
Connections used in Network: - RJ 45, RS -232, etc. The Data Link Layer: - Stop 
and    Wait  Flow  Control,  Sliding    Window  Flow  Control,  Error  Detection,  Cyclic
Redundancy Check, Stop  and  -  Wait ARQ, Selective  Reject ARQ, High- level
Data  Link  Control  (HDLC)  and  its  Operation,  X.25  Protocol,  Token  bus  and  Token
Ring. Multiplexing: TDM, TDM link control, Framing, Pulse Stuffing, FDM, Statistical
TDM.   Switching   Concepts:   Circuit   Switching,   Packet   Switching:   -   Datagram
Approach, Virtual Circuit Approach. The Network Layer: - Routing: - Characteristics,
Performance  Criteria,  Decision  time  and  place.  Routing  Strategies:-  Alternate
Routing,  Adaptive  Routing,  Fixed  Routing,  Flooding.  Congestion  Control.  The  IP
Protocol: - IP Addressing, Subnets, Internet Control Protocols. The TCP Protocol: -
the TCP Segment Header, TCP Connection Management. The Application Layer: -
DNS,  SNMP.  Introduction  to  Equipments  used  in  Networking:  -  Bridges,  Hubs,
Switches,  and  Routers.  Concepts  of  Network  Security:-    Encryption  ,  Public  Key,
Digital  Signature,  Introduction  to  Other  Technologies:-  ATM,  Frame  Relay,  ISDN,
VSAT  (Very  Small  Aperture  Terminal)  communication,  Global  positioning  System
(GPS). 

Distributed Computing: - Fundamentals, What is Distributed Computing? Evolution of
DCS, DC System Models, Advantages and Disadvantages of DCS, Comparison with
Centralized OS.