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DATA COMMUNICATION |azdocuments.in


Subject Code:18CS46
CIE Marks:40
SEE Marks:60
Number of Contact Hours/Week:3:0:0 Total Number of Contact Hours:40 Exam Hours:3 Hrs

Course Learning Objectives: This course (18CS46) will enable students to:

Comprehend the transmission technique of digital data between two or more computers and a  computer network that allows computers to exchange data.
Explain with the basics of data communication and various types of computer networks;
Illustrate TCP/IP protocol suite and switching criteria.
Demonstrate Medium Access Control protocols for reliable and noisy channels.
Expose wireless and wired LANs.

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Module 1

Introduction: Data Communications, Networks, Network Types, Internet History, Standards and Administration, Networks Models: Protocol Layering, TCP/IP Protocol suite, The OSI model, Introduction to Physical Layer-1: Data and Signals, Digital Signals, Transmission Impairment, Data Rate limits, Performance.
Textbook1: Ch 1.1 to 1.5, 2.1 to 2.3, 3.1, 3.3 to 3.6

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Module 2

Digital Transmission: Digital to digital conversion (Only Line coding: Polar, Bipolar and Manchester coding).
Physical Layer-2: Analog to digital conversion (only PCM), Transmission Modes,
Analog Transmission: Digital to analog conversion.
Textbook1: Ch 4.1 to 4.3, 5.1

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Module 3

Bandwidth Utilization: Multiplexing and Spread Spectrum,
Switching: Introduction, Circuit Switched Networks and Packet switching.
Error Detection and Correction: Introduction, Block coding, Cyclic codes, Checksum,
Textbook1: Ch 6.1, 6.2, 8.1 to 8.3, 10.1 to 10.4

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Module 4

Data link control: DLC services, Data link layer protocols, Point to Point protocol (Framing, Transition phases only).Media Access control: Random Access, Controlled Access and Channelization,
Introduction to Data-Link Layer: Introduction, Link-Layer Addressing, ARP
IPv4 Addressing and subnetting: Classful and CIDR addressing, DHCP, NAT 
Textbook1: Ch 9.1, 9.2, 11.1, 11.2 11.4, 12.1 to 12.3, 18.4

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Module 5

Wired LANs Ethernet: Ethernet Protocol, Standard Ethernet, Fast Ethernet, Gigabit Ethernet and 10 Gigabit Ethernet,
Wireless LANs: Introduction, IEEE 802.11 Project and Bluetooth.
Other wireless Networks: Cellular Telephony
Textbook1: Ch 13.1 to 13.5, 15.1 to 15.3, 16.2

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Course Outcomes: The student will be able to :

Explain the various components of data communication.
Explain the fundamentals of digital communication and switching.
Compare and contrast data link layer protocols.
Summarize IEEE 802.xx standards

Question Paper Pattern:

The question paper will have ten questions.
Each full Question consisting of 20 marks
There will be 2 full questions (with a maximum of four sub questions) from each module.
Each full question will have sub questions covering all the topics under a module.
The students will have to answer 5 full questions, selecting one full question from each module.


1. Behrouz A. Forouzan, Data Communications and Networking 5E, 5th Edition, Tata McGraw-Hill, 2013. (Chapters 1.1 to 1.5, 2.1 to 2.3, 3.1, 3.3 to 3.6, 4.1 to 4.3, 5.1, 6.1, 6.2, 8.1 to 8.3, 10.1 to 10.5, 11.1 to 11.4, 12.1 to 12.3, 13.1 to 13.5, 15.1 to 15.3, 16.1 to 16.3)

Reference Books:

1. Alberto Leon-Garcia and Indra Widjaja: Communication Networks - Fundamental Concepts and Key architectures, 2nd Edition Tata McGraw-Hill, 2004.
2. William Stallings: Data and Computer Communication, 8th Edition, Pearson Education, 2007.
3. Larry L. Peterson and Bruce S. Davie: Computer Networks – A Systems Approach, 4th Edition, Elsevier, 2007.
4. Nader F. Mir: Computer and Communication Networks, Pearson Education, 2007.

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