Concepts of Computer Networks

Free Courses : Concepts of Computer Networks

The learners' will be able to understand and explain the following upon completing this course:

1. Fundamentals of Networking - Network Criteria, Types, Basic Parameters.

2. Network Topologies - Types of Connection, Mesh, Star, Ring, Bus Topologies.

3. The responsibilities of all the layers of OSI Model and the TCP/IP Model.

4. Line Coding Techniques - Unipolar NRZ, Polar NRZ, RZ, Bipolar, Biphase Schemes.

5. Error Detection Techniques - Parity, LRC, CRC, VRC, Checksum.

6. Switching Techniques - Circuit Switching, Packet Switching and VCN.

7. Flow Control Techniques - Stop and Wait, ARQ, Sliding Window Protocols.

8. Multiplexing Techniques - TDM, FDM, WDM

9. Addressing - IPv4, IPv6, IPv4 Header Format.

10. Network Devices - Passive Hubs, Active Hubs, Repeaters, Bridges, Routers

11. UDP - Introduction, Advantages, Disadvantages, Uses, Header Format

12. TCP - Introduction, Advantages, Disadvantages, Uses, Header Format, Data Delivery Phases

Computer Network is an interconnection between computers or we can say computer network is group of computers linked to each other which enables one computer to communicate with another computer. It acts as basis of communication in Information Technology (IT). It is system of connected computing devices and shares information and resources between them. The devices in network are connected by communication links (wired/wireless) and share data by Data Communication System

In general, we can see Communication and Sharing, that is all networking is about in simple terms. It enables everything that we do today. In the current scenario, the business would not work without computer networking and our personal and social life will also feel like it has been stopped.

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