Data Communication and Computer Networks

Paper Code: 
MCA 125
Credits: 
04
Periods/week: 
04
Max. Marks: 
100.00
Objective: 
  • To understand networking concepts and basic communication model
  • To understand network architectures and components required for data communication.
  • To analyze the function and design strategy of physical, data link, network layer and transport Layer.
  • To acquire knowledge of various application protocol standard developed for internet.
12.00
Unit I: 
Networking Fundamentals:

Introduction, Data & Information, Data Communication-Characteristics of Data Communication, Components of Data Communication, Data Representation, Data Flow- Simplex, Half Duplex, Full Duplex, Computer Network- Categories of a network, Protocol- Elements of a Protocol, Networking Standards, Reference Models- OSI Model, TCP/IP Model, Comparison of OSI and TCP/IP Model.

12.00
Unit II: 
The Physical Layer

Transmission Media- Guided & Unguided, PSTN: Structure of the Telephone System, Data types, Signal types- Analog & Digital, Modulation Techniques, Modem, Cable Modem, Protocols: DSL, ISDN.

The Data Link Layer

Design Issues: Framing, Error Control, Flow Control, Protocols: FDDI, CDDI, Frame Relay, ATM, 802.11, PPP, HDLC.

12.00
Unit III: 
The Medium Access Sub-Layer

Multiple Access Protocols: ALOHA, CSMA, Ethernet: Switched Ethernet, Fast Ethernet, Gigabit Ethernet, DLL Switching: Internetworking, Repeaters, Hubs, Bridges, Switches, Routers, Gateways, Virtual LANs.

12.00
Unit IV: 
The Network Layer

Design Issues, Routing Algorithms: Link State Routing, Distance Vector Routing, Flooding, Routing Protocols: RIP, IGRP, EIGRP, OSPF, Internetworking: Tunneling, Fragmentation, IPV4, IPV6 Basics, BGP.

The Transport Layer Protocols: UDP, TCP, Headers.

Unit V: 
The Application Layer

DNS: The DNS Name Space, Name Servers,E-Mail: SMTP, POP3, HTTP, FTP, Telnet, Network Management: SNMP.

Network Security

Cryptography: Encryption, Decryption, Private/Public Key, Digital Signatures, SSL, Firewalls, PGP, S/MIME.

ESSENTIAL READINGS: 
  • Andrew S.Tanenbaum, “Computer Networks”, Prentice Hall, 5th Edition, October, 2010.
  • A. Behrouz Forouzan, “Data Comm. & Network”, McGraw Hill Education (India) Private Limited, 5th Edition, 2013.
REFERENCES: 
  • Douglas E.Comer & M. S. Narayana, “Computer Networks and Internets with Internet Applications”, Pearson Education, 4th Edition, 2009.
  • Fred Halsall, “Data Communications, Computer Networks and Open Systems”, Addison Wesley, 4th Edition, 2001.
  • William Stallings, “Cryptography and Network Security: Principles and Practice”, Pearson Education, 5th Edition, 2011.
Academic Year: 
2017-18
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