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What Layer in the Open System Interconnection (OSI) model is responsible for mapping IP network addresses to the MAC Address as required by the Data-Link Protocol (ARP)?
Data-Link Layer
Transport
Presentation Layer
Network Layer
The Network layer is responsible for mapping IP network addresses to the MAC Address as required by the Data-Link Protocol (ARP). The Physical layer, the lowest layer of the OSI model, is concerned with the transmission and reception of the unstructured raw bit stream over a physical medium. The Data-Link layer provides error-free transfer of data frames from one node to another over the physical layer. The Transport layer ensures that messages are delivered error-free, in sequence, and with no losses or duplications. The Presentation layer formats the data to be presented to the application layer. (Note: this is wrong. ARP is actually a layer 2 protocol) https://en.m.wikipedia.org/wiki/AddressResolutionProtocol - EDIT: I thing this is a poor question. IP and MAC are at different layers of the OSI model, and neither layer is "responsible" for the mapping in question. ARP works at Data Layer
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