M.SC 2ND SEMESTER
PAPER CODE: M.Sc.-204
Note: Examiner will be required to set NINE questions in all. Question Number 1 will consist of
total 8 parts (short-answer type questions) covering the entire syllabus and will carry 16 marks.
In addition to the compulsory question there will be four units i.e. Unit-I to Unit-IV. Examiner
will set two questions from each Unit of the syllabus and each question will carry 16 marks.
Student will be required to attempt FIVE questions in all. Question Number 1 will be
compulsory. In addition to compulsory question, student will have to attempt four more
questions selecting one question from each unit.
Introduction to Computer Network: Types of Networks, Network Topologies, OSI and
TCP/IP Reference Models; Comparison of Models.
Data Communications Concepts: Digital Vs. Analog communication; Parallel and Serial
Communication; Synchronous, Asynchronous and Isochronous Communication;
Communication modes: simplex, half duplex, full duplex; Multiplexing; Transmission media:
Wired-Twisted pair, Coaxial cable, Optical Fiber, Wireless transmission: Terrestrial, Microwave,
Satellite, Infra red.
Communication Switching Techniques: Circuit Switching, Message Switching, Packet
Data Link Layer Fundamentals: Framing, Basics of Error Detection, Forward Error
Correction, Cyclic Redundancy Check codes for Error Detection , Flow Control.
Media Access Protocols: ALOHA, Carrier Sense Multiple Access (CSMA), CSMA with
Collision Detection (CSMA/CD), Token Ring, Token Bus.