We define data link layer communication efficiency as the ratio between a packet transmission time and the sum of the the packet transmission time and twice of its propagation time. A channel has a bit rate of 10 kbps and a propagation delay of 10,000 micro-second. For what range of frame sizes (in number of bit) does stop-and-wait give an efficiency of at most 90%?

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Network transmission cabling

A network is a collection of devices connected by communication links. A device can be a computer or any instrument capable of sending and receiving data or information formed by other nodes toward the network. A channel that connects people or things is known as a network. It sends the data from one place to another. It is the basic concept of a computer, network, and data communications.