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DATA COMMUNICATION SYSTEM

1. Syllabus

Theory: 1. Understand the communication basics. 

1.1 Define Electronic Communication. 

1.2 Mention the basic elements of a communication system. 

1.3 Describe communication system with a simple block diagram. 

1.4 State the terms: Frequency,Wavelength,Spectrum, Bandwidth, Throughput,Propagation speed,  

      Propagation time, Noise figure & SNR 

1.5 Mention the difference between bandwidth and data rate. 

1.6 Describe simplex, half-duplex and full duplex modes of communication.  

1.7 Describe synchronous and asynchronous communication techniques. 

2.  Understand Analog Communication Systems 

2.1 Define Modulation and Demodulation. 

 2.2 State the necessity of modulation. 

2.3 Mention the types of modulation. 

2.4 Describe Amplitude, Frequency and Phase modulation with necessary waveform. 

2.5 State the difference between analog and digital modulation 

2.6 State the advantage and disadvantages of ASK, FSK and PSK (BPSK) 

 

3.  Understand Digital Communication Systems 

3.1 Define digital modulation. 

3.2 Describe Digital communication system with block diagram. 

3.3 Define Line Coding and Block Coding. 

3.4 Mention the Line Coding Schemes. 

3.5 State unipolar Linecoding with timing diagram. 

3.6 Describe NRZ-I Line Coding scheme using 4B/5B Block Coding. 

3.7 Describe different types of polar encoding with necessary timing diagram. 

4.  Understand the transmission media and connectors. 

4.1 Mention the categories of transmission media 

4.2 Describe the construction of Twisted-pair (STP, UTP) Co-axial and Fiber optic cable. 

4.3 State the characteristics of Twisted-pair (STP, UTP), Co-axial and Fiber optic cable. 

4.4 State the advantage and disadvantages of each type of cables. 

4.5 Define Wireless Media and Propagation. 

4.6 Describe Wireless Propagation Modes with diagram. 

4.7 Describe the method of Radio, Microwave and Infrared communication system. 

4.8 State the characteristics of Radio, Microwave and Satellite communication system. 

 

5. Understand multiplexing techniques 

5.1 Define Multiplexing and De-multiplexing process of communication system. 

5.2 State the necessity of multiplexing. 

5.3 Mention the categories of multiplexing. 

5.4 Define Frequency division multiplexing. 

5.5 Describe Frequency division multiplexing and de-multiplexing technique with block diagram 

5.6 Describe the Wave division multiplexing and De-multiplexing technique with block diagram 

5.7 Define Time division multiplexing and of Code division multiplexing system 

5.8 State difference between baseband and broadband transmission. 

 

6.  Understand computer network basics. 

6.1 Define Computer Network 

6.2 State the concept of computer Network. 

6.3 Mention elements of computer network. 

6.4 Describe the advantages of Computer network. 

6.5 Describe the application of computer network. 

6.6 Describe client / server and peer-to-peer network. 

6.7 Describe the general features of LAN, MANs and WANs. 


 

7. Understand the network topologies. 

7.1 Define network topology. 

7.2 Mention the difference between physical and logical topology. 

7.3 Describe the physical connection of bus, ring, star, mesh and hybrid topologies. 

7.4 Mention the advantages and disadvantages of bus, ring, star, mesh and hybrid topologies. 

7.5 Describe the factors to select a particular topology. 

7.6 Describe the logical topologies of a token ring network. 

8. Understand network protocols.  

8.1 Define network protocol. 

8.2 Describe the main elements of protocol.  

8.3 Describe the characteristics of protocol. 

8.4 Describe the functions of protocol. 

8.5 List different types of network protocols. 

8.6 State the function of TCP/IP protocol. 

9. Understand IP addressing. 

9.1 Define Network Addressing. 

9.2 Define IP and IPv4  

9.3 Describe the IP address formats of class A,B,C,D &E with example. 

9.4 Describe subnet and subnet masks. 

9.5 State CIDR format of subnet. 

9.6 Define IPv6. 

9.7 Describe the address format of IPv6. 

10. Understand Network Interface Cards (NIC)  

10.1 State the role of NIC.  

10.2 Describe the format of Physical address (MAC Address) of NIC.  

10.3 Mention the points that agree both the sending and receiving NICs.  

10.4 State the importance of base memory address for NIC.  

10.5 Mention the important points to maintain the compatibility among NIC, bus and cables.  

10.6 Describe the NIC related factors that enhanced the performance of network.  

11. Understand the connectivity devices 

11.1 List the connectivity devices used in networking.  

11.2 Describe function of MODEM. 

11.3 Describe MODEM types and Standard.  

11.4 Describe the features of ADSL and Digital MODEM.  

11.5 Describe the functions of Hubs, Repeaters and switches in network.  

11.6 Describe the important features of Repeaters and switches. 

11.7 Describe the functions of Router and Gateway 

 

Practical:  Identify different types of guided communication media. 

1. Twisted Pair Cable- Unshielded Twisted Pair (UTP), Shielded Twisted Pair (STP) 2. Co-axial Cable- Thick net and Thin net 3. Fiber Optic Cable- Single mode and Multi mode 4. Constructional features of UTP, STP, Co-axial Cable and Fiber Optic Cable. 

 

 Identify different types of connectors  

5. Twisted Pair Cable- RJ45 Connectors and their constructional features. 6. Co-axial Cable- BNC Connectors and their constructional features. 7. Fiber Optic Cable- MT-RJ and their constructional features.  Identify other Network hardware’s 

8. Network Interface Cards/LAN cards/ Network Adaptor. 9. Cable Tester, Crimper and Accessories 10. Modems, Hubs, Repeater, Switch & Router 

 Connect RJ45 Connector with UTP Cable 

11. Make a straight through cable 12. Make a Cross over cable 13. Make a console cable 

 Establish a Peer to Peer/Workgroup LAN 

14. Install Network Interface Card (NIC) into the PC 15. Check the MAC address of the Network Interface Card (NIC) 16. Connect straight cable or cross over cable among PCs, Hub or Switch 17. Configure the TCP/IP in each PC 18. Test the connectivity among PCs using Ping Command. 

 Perform the task to Work with a Peer/Workgroup LAN environment for simple data communication. 

19. Share the folders, Pen drive and Secondary memory. 20. Share a printer, DVD Drive or any other resources. 

 Establish a Client–Server Local Area Network 

21. Install Windows server 2012 into a server PC 22. Configure TCP/IP to server and client PCs 23. Perform the task to configure the Active Directory 24. Perform the task to configure The DNS. 25. Perform the task to configure the DHCP 26. Perform the task to Work with a Client–Server LAN environment for simple datacommunication  and Administrative functions. 

 

REFERENCE BOOKS 

1. Data communications and Networking – Behrouz A. Forouzan. 2. Fundamentals of Communication-M. Shamim Kaiser and associates 

4. Data and Computer Communications-William Stallings 5. Local Area Networking – S. K Basandra. 6. MCSE Windows & Networking Essential – Joe Casad