An ARP request is broadcasted and sends the following request: "Who is 192.168.1.200? Tell 192.168.1.55" At which of the following layers of the OSI model does this request operate?
An ARP (Address Resolution Protocol) request operates at the Data Link layer of the OSI model. ARP is used to map an IP address (which operates at the Network layer) to a MAC address (which operates at the Data Link layer). The ARP request "Who is 192.168.1.200? Tell 192.168.1.55" is used to find the MAC address corresponding to the IP address 192.168.1.200.
Therefore, the correct answer is:
B. Data link
ARP works between Layers 2 and 3. The MAC address exists on Layer 2, the data link layer. The IP address exists on Layer 3, the network layer. Based on the context of this question, the given answer is correct.
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