Unit V: Physical Layers and its Design Issues - Data Communication and Computer Network

Physical layer is the lowest layer of the OSI reference model. It is responsible for sending bits from one computer to another. This layer is not concerned with the meaning of the bits and deals with the setup of physical connection to the network and with transmission and reception of signals.

In this “Physical Layers and its Design Issues - Data Communication and Computer Network” you will learn about following topics:

1. Transmission Mediums in Computer Networks
2. Bounded Transmission Media
3. Twisted Pair Cable
4. Twisted Pair Cables Are Of Two Types
5. Unshielded Twisted Pair Cable
6. Shielded Twisted Pair Cable
7. Coaxial Cable
8. Types of Coaxial Cables
9. Baseband
10. Broadband
11. Fiber Optic Cable
12. Unbound Transmission Media
13. Radiowaves Transmission
14. Microwave Transmission
15. Types of Microwave Transmission
16. Terrestrial Microwave
17. Satellite Microwave
18. Infra-Red
19. ISDN (Integrated Services Digital Network)
20. PSTN (Public Switched Telephone Network)
21. Difference between ISDN and PSTN

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BCA 6th Semester DCCN (Data Communication And Computer Network) Notes:

Unit I: Background Study And Revision - Data Communication And Computer Network

Unit II: Data Transmission - Data Communication And Computer Network

Unit III: Multiplexing And Switching - Data Communication And Computer Network

Unit IV: Reference Model - Data Communication And Computer Network

Unit VI: Data Link Layer - Data Communication And Computer Network

Unit VII: TCP/IP Reference Model - Data Communication And Computer Network

Unit VIII: Network Layer And Internet Layer - Data Communication And Computer Network

Unit IX: Network Servers - Data Communication And Computer Network

Unit X: VPN And Network Security - Data Communication And Computer Network