Types of Communication Networks

Communication Networks can be of following 5 types: 1.      Local Area Network (LAN) 2.      Metropolitan Area Network (MAN) 3.      Wide Area Network (WAN) 4.      Wireless 5.      Inter Network (Internet) Local Area Network (LAN) It is…

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UnBounded or UnGuided Transmission Media

Unguided medium transport electromagnetic waves without using a physical conductor. This type of communication is often referred to as wireless communication. Signals are normally broadcast through free space and thus…

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Fiber Optic Cable

A fibre-optic cable is made of glass or plastic and transmits signals in the form of light. For better understanding we first need to explore several aspects of the nature of…

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Coaxial Cable

Coaxial is called by this name because it contains two conductors that are parallel to each other. Copper is used in this as centre conductor which can be a solid…

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Twisted Pair Cable

This cable is the most commonly used and is cheaper than others. It is lightweight, cheap, can be installed easily, and they support many different types of network. Some important…

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Transmission Mediums in Computer Networks

Data is represented by computers and other telecommunication devices using signals. Signals are transmitted in the form of electromagnetic energy from one device to another. Electromagnetic signals travel through vacuum,…

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Transmission Modes in Computer Networks

Transmission mode refers to the mechanism of transferring of data between two devices connected over a network. It is also called Communication Mode. These modes direct the direction of flow of…

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Types of Network Topology

Network Topology is the schematic description of a network arrangement, connecting various nodes(sender and receiver) through lines of connection. BUS Topology Bus topology is a network type in which every…

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Line Configuration in Computer Networks

A Network is nothing but a connection made through connection links between two or more devices. Devices can be a computer, printer or any other device that is capable to…

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Requirements of certification

Master and Deck Department  13.        Minimum requirements for certification of officer in charge of a navigational watch (Second Mate of a foreign-going ship) on ships of 500 gross tonnage or…

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