Sue is having trouble understanding some network concepts and asks you to help identifyaddress types. Which of the following is considered a layer-2 address?A. 192.168.2.200B. www.gleneclarke.comC. COMPUTER 1D. 00-AB-OF-2B-3C-4E
Question
Sue is having trouble understanding some network concepts and asks you to help identifyaddress types. Which of the following is considered a layer-2 address?A. 192.168.2.200B. www.gleneclarke.comC. COMPUTER 1D. 00-AB-OF-2B-3C-4E
Solution
The answer is D. 00-AB-OF-2B-3C-4E. This is considered a layer-2 address, also known as a MAC (Media Access Control) address. It is a hardware address that uniquely identifies each node of a network. In IEEE 802 networks, the Data Link Control (DLC) layer of the OSI Reference Model is divided into two sub-layers: the Logical Link Control (LLC) layer and the Media Access Control (MAC) layer. The MAC layer interfaces directly with the network medium. Consequently, each different type of network medium requires a different MAC layer.
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