communication channel types information flow directions time Half-duplex Full-duplex Simplex communication Simplex transmission example

Which of the communication channel types allows for information to flow in both directions at the same time?

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    Transmission mode means transferring data between two devices. It is also known as a communication mode. Buses and networks are designed to allow communication to occur between individual devices that are interconnected. There are three types of transmission mode:- 
     
     

    These are explained as following below.

    1. Simplex Mode –
    In Simplex mode, the communication is unidirectional, as on a one-way street. Only one of the two devices on a link can transmit, the other can only receive. The simplex mode can use the entire capacity of the channel to send data in one direction. 
    Example: Keyboard and traditional monitors. The keyboard can only introduce input, the monitor can only give the output. 

    2. Half-Duplex Mode –
    In half-duplex mode, each station can both transmit and receive, but not at the same time. When one device is sending, the other can only receive, and vice versa. The half-duplex mode is used in cases where there is no need for communication in both directions at the same time. The entire capacity of the channel can be utilized for each direction. 
    Example: Walkie-talkie in which message is sent one at a time and messages are sent in both directions. 

    Channel capacity=Bandwidth * Propagation Delay

    3. Full-Duplex Mode –
    In full-duplex mode, both stations can transmit and receive simultaneously. In full_duplex mode, signals going in one direction share the capacity of the link with signals going in another direction, this sharing can occur in two ways: 

    • Either the link must contain two physically separate transmission paths, one for sending and the other for receiving.
    • Or the capacity is divided between signals traveling in both directions. 
       

    Full-duplex mode is used when communication in both directions is required all the time. The capacity of the channel, however, must be divided between the two directions. 
    Example: Telephone Network in which there is communication between two persons by a telephone line, through which both can talk and listen at the same time. 

    Channel Capacity=2* Bandwidth*propagation Delay

    References- Data Communication and Network,5th Edition, Behrouz A.Forouzan. 

    This article is contributed by Saloni Gupta. If you like GeeksforGeeks and would like to contribute, you can also write an article using write.geeksforgeeks.org or mail your article to . See your article appearing on the GeeksforGeeks main page and help other Geeks. 

    Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above.

    In which communication data can flow in both directions at the same time?

    3. Full-Duplex. Full-Duplex is the data transmission mode in which the data can flow in both directions at the same time. It is bi-directional in nature.

    In which mode the communication channel acts as a bidirectional channel at the same time?

    Full-duplex data transmission allows information to flow in both directions at the same time. It's a bi-directional system. It is a two-way communication system in which both stations can send and receive data at the same time.

    Which mode of communication is between two devices in which flow?

    In full-duplex mode, the communication is bidirectional. A device can only send the data but cannot receive it or it can only receive the data but cannot send it. Both the devices can send and receive the data, but one at a time. Both the devices can send and receive the data simultaneously.

    Which is a communication mode in which the both sender and receiver may transmit simultaneously?

    In full-duplex transmission mode, the communication between sender and receiver can occur simultaneously. The sender and receiver can both transmit and receive at the same time. The full-duplex transmission mode is like a two-way road, in which traffic can flow in both directions at the same time.

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