Go Back N ARQ which stands for Go Back N Automatic Repeat Request (ARQ) is a data link layer protocol that is used for data flow control purposes. It is a sliding window protocol in which multiple frames are sent from sender to receiver at once. The number of frames that are sent at once depends upon the ...
The simplest protocol for transport layer communication is User Datagram Protocol (UDP). It has the bare minimum of communication channels. It is a best-effort delivery protocol that is regarded as unreliable. Because UDP doesn’t offer an acknowledgment mechanism, neither the sender nor the receiver sends an acknowledgment for a packet that has been received or sent. What is User ...
The simplest protocol is a data link layer protocol used for noiseless channels. The simplest protocol is also known as the Elementary Data Link Protocol. As the simplest protocol is used in noiseless channels, it has no error control and no flow control. In the simplest protocol, we assume that the receiver is always ready to ...
The selective repeat ARQ is one of the Sliding Window Protocol strategies that is used where reliable in-order delivery of the data packets is required. The selective repeat ARQ is used for noisy channels or links and it manages the flow and error control between the sender and the receiver. In the selective repeat ARQ, we only resend the ...
A bridge is a computer networking device that connects multiple LANs (Local area networks) together to create a single, larger LAN. The process of aggregating networks is referred to as network bridging. Bridges operate at the data link layer according to the OSI model. A repeater is also a computer networking device operating at the OSI model’s physical layer ...
ICMP works like the communication between the carpenter and the store. It relays messages from the receiver to the sender about the data that was supposed to arrive. ICMP protocol notifies the sender if the data is not received by the receiver or received in the wrong order. Thus, ICMP is a protocol for communicating ...
The stop and wait ARQ is one of the Sliding Window Protocol strategies that is used where reliable ordered delivery of the data frames is required. The stop and wait ARQ is used for noisy channels or links and it manages the flow and error control between the sender and the receiver. The stop and ...
Modems and routers are very different networking devices and perform separate functions. A modem is a device that is used to connect networking devices to the Internet. A router is used to connect your devices to your home network (also known as a Local Area Network or LAN) or WiFi network so that your device ...
Transmission mode, also known as a communication mode, is the transfer of data between two devices via a communication channel that includes an optical fiber, wireless channels, copper wires, and other storage media . Data is transmitted between two devices in the form of electromagnetic waves. There are numerous data transmission methods in which the message is delivered in the form ...
Network devices are physical devices that enable communication and interaction between hardware on a computer network. Each networking device operates in a distinct computer network segment and performs distinct functions. A network may require hundreds or thousands of different network devices to maintain and build out various LAN and WAN. Network devices like the hub, bridge, repeater, modem, router, gateway, etc., are the basic building blocks of an extensive network. What ...