Data Communication & Computer Networks

Course Title: Data Communication & Computer Networks

Course No: IT214

Nature of the Course: Theory + Lab

Semester: 2

Credit Hours: 3

Course Description

The objective of this module is to provide a fundamental concept of the electrical characteristics of digital signals and the basic methods of data transmission, underlying principles in the design of a layered network architecture, identify the general characteristics of local area networks (LANs) and wide area networks (WANs), and concept of TCP/IP protocol stack as an example of a layered network architecture.

Course Objectives

Course Contents

1. Introduction to Data Communication

2 hrs

1.1. A basic Communication model

1.2. Data Communication Networking: WAN, MAN, LAN

2. Data Communication principles

4 hrs

2.1. Basic Concept: Signal, Frequency, Amplitude, Bandwidth, Digital signal, Analog signals, Digital data and analog data, Transmission Impairments, Channel capacity, Overview of analog and digital transmission, Synchronous and asynchronous transmission

2.2. Data Encoding

Digital data and digital signals- NRZ-L, NRZI, Manchester

Digital data and analog signals- ASK, FSK, PSK, QPSK

2.3. Multiplexing Techniques ( FDM, TDM, WDM)

3. Overview of Digital Communication

3 hrs

3.1. Media Concepts and classification of media

Guided Media (Twisted Pair, Coaxial cable, Fiber optics)

Unguided Media (description and working principle of VSAT and Satellite)

3.2. Transmission characteristics(Attenuation, Noise, Signal to Noise ratio, Propagation delay)

4. Computer Communication Architecture

3 hrs

4.1. OSI(Open systems Interconnection) Reference Model

4.2. TCP/IP (Transmission Control Protocol/Internet Protocol) Protocol Suite

5. Data Link Layer

5 hrs

5.1. Service Provided to Network Layer

5.2. Framing

5.3. Error Detection methods: Parity, Checksum , CRC

5.4. Data Link Protocols

A simplex stop and wait protocol

Sliding window protocols

6. Medium Access (MAC) Sub-layer

4 hrs

6.1. Multiple access Protocols

ALOHA (Pure and Slotted ALOHA)

Carrier Sense Multiple Access(CSMA)

6.2. Topologies

6.3. Overview of IEEE Standard 802 for LANS and MANS

Brief introduction Ethernet

Brief introduction Token Ring

6.4. Introduction to Wireless Communication

6.5. Introduction to Bridge, Switch and Router

7. Packet Switching

2 hrs

7.1. Packet Switching Principles

7.2. Switching Techniques

Datagram Approach

Virtual Circuit Approach

8. Routing Algorithms

4 hrs

8.1. Fixed Path Routing

8.2. Shortest Path Routing

8.3. Flooding

8.4. Distance Vector Routing

8.5. Link State Routing

9. The Network Layer in the Internet

7 hrs

9.1. IP Protocol IP V4

9.2. IP Addresses

9.3. Subnets

9.4. Supernet

9.5. VLSM(variable length subnet masking), CIDR(Classless Inter-Domain Routing) and NAT (Network Address Translator)

9.6. Overview of Internet Control Protocols

ICMP, IGMP

9.7. Routing Protocols

Interior Routing Protocol: OSPF

Exterior Routing Protocol: BGP

9.8. Introduction to IPv6

10. Transport Layer

4 hrs

10.1. Transport Services

10.2. Addressing

10.3. Internet Transport Protocols TCP (Transmission Control Protocol) and UDP (User Datagram Protocol)

Introduction to UDP (Operation of UDP, Characteristics of UDP, Application of UDP)

Introduction to TCP (Operation of TCP, Characteristics of TCP, TCP three-way handshake process, Application of TCP)

10.4. Relationship between TCP & IP

10.5. Standard TCP / IP services

10.6. Port numbers and socket address

10.7. Overview of BSD Socket API

11. Application Layer

3 hrs

11.1. DNS (ARP and RARP), Mail protocol (SMTP, POP, IMAP), DHCP, Web services (WWW, HTTP, HTTPS, FTP), telnet, DHCP.

11.2. Client server and P2P application

11.3. Relation between Application layer and Transport layer.

12. Other technologies overview

3 hrs

12.1. PSTN, ISDN and its type, Frame relay, DSL and ADSL, VoIP, Bluetooth, Wi-Fi, Overview of GSM, Wi-Max, 3G and 4G(LTE), Near field Communication(NFC).

Laboratory Works

Lab works covering cabling, network installation, resource sharing, server configuration, DNS, DHCP, web server, wireless devices and security. Project Work: The instructor should assign a project to the students on focusing the designs of a small LAN.

1.Lab 1, 2, 3, 4
2.Lab 5, 6
3.Lab 7, 8
4.Lab 9, 10
5.Lab 11
6.Lab 12
7.Lab 13
8.Lab 14
9.Lab 15

Text Books

1.Behrouz A. Forouzan, Data Communications and Networking, 5th edition, McGraw-Hill

Reference Books

1.A.S Tanenbaum, Computer Networks. 4th Edition. PHI.
2.D.E. Corner, Internetworking with TCP/IP. Vol.1. 3rd ed. PHI.
3.S. Keshav, An Engineering Approach to Computer Networking Addison Wesley, Longman.
4.W. Stalling, Data and Computer Communications. 8th Edition. PHI.
5.W.R. Stevens, TCP/IP Illustrated Volume I, II and III, Addision Wesley Longman
6.Behrouz A. Forouzan, Firouz Mosharraf, Computer Networks: A Top-Down Approach, McGraw-Hill

Notes:

This syllabus follows the official BIM curriculum of Tribhuvan University. In case of any doubt or revision, the university's published syllabus shall be considered authoritative.https://itcollegenepal.com/bachelor-in-information-management-syllabus/

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Data Communication & Computer Networks

Course Description

Course Objectives

Course Contents

Laboratory Works

Text Books

Reference Books

Notes: