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What is Full Duplex mode? Differentiate between simplex, half duplex and full duplex?
When a data is transmitted from one device to another device is known as transmission mode, it is also known as the communication mode.
Generally, the communication channel is a direction associated, and transmission media role is to provide the direction. So, we call transmission mode a directional mode.
The transmission mode is work in the physical layer.
Types of Transmission mode
The Transmission mode is divided into three categories, which are as follows −
- Simplex Mode
- Half-duplex Mode
- Full-duplex mode (Duplex Mode)
The types of transmission mode are shown in the chart below −
Let us see the full duplex mode of transmission.
Full duplex mode
In Full duplex mode, the communication is bi-directional, i.e., the data flow in both the directions. The sender and receiver can send and receive the data simultaneously.
Full-duplex mode of transmission has two simplex channels.
One channel is used for traffic moving in one direction, and another channel is used for traffic flowing in the opposite direction.
The Full-duplex mode is the fastest mode of communication between the devices when compared to other modes of channels. The example of the full-duplex mode is a Telephone network.
When two people are communicating with each other by a telephone line, both can talk and listen at the same time.
Given below is the diagram of full duplex mode of transmission −
The advantage of Full-duplex mode is that both the stations can send and receive the data at the same time.
The disadvantage of Full-duplex mode is that if no dedicated path exists between the devices, then the capacity of the communication channel is divided into two parts.
The major differences between simplex, half-duplex and full-duplex mode of transmission are as follows −
|Simplex mode of transmission is a uni-directional communication. That means it is a one way communication||Half-duplex mode of data transmission is a two-way communication but one at a time.||Full duplex mode transmission is a two-way communication of data all the time.|
|In this mode of transmission, the sender can send the data but can’t receive the data.||In this mode of transmission, the sender can send the data and can receive the data but one at a time.||In this mode of transmission, the sender can send the data and can receive the data simultaneously.|
|It provides less performance when compared to half-duplex and full-duplex.||It provides less performance when compared to full-duplex.||It provides better performance than simplex and half-duplex mode.|
|Examples of simplex mode are Keyboard and monitor.||Example of half-duplex mode is Walkie-Talkies.||Example of full-duplex mode is Telephone.|
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