The correct answer to this question is C, “将IP地址解析为MAC地址”. ARP (Address Resolution Protocol) is used to map an IP address to a corresponding physical (MAC) address on a local network. This allows devices on the network to communicate with each other using their unique MAC addresses. Option A is incorrect because it describes the purpose of Spanning Tree Protocol (STP), which prevents loops in a network’s layer 2 topology. Option B is incorrect because it describes the purpose of DNS (Domain Name System), which maps domain names to IP addresses. Option D is incorrect because it describes the purpose of routing protocols, which are used for forwarding packets between different networks.
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