NETWORK LAYER
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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node to node
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router to router
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server to server
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coast to coast
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Detailed explanation-1: -Communication at the data-link layer is node-to-node. A data unit from one point in the Internet needs to pass through many networks (LANs and WANs) to reach another point. Theses LANs and WANs are connected by routers.
Detailed explanation-2: -The main responsibility of the data link layer is the node-to-node delivery of a message. This is done by using nodes that are directly connected to each other. In the data link layer, data is packaged into frames.
Detailed explanation-3: -A network node sits at a point in the network where it sends, receives, stores or creates information. It transmits data to communicate with other nodes in the network. In a computer network, nodes can be physical networked devices, such as modems, PCs and printers.