Which protocol maps a MAC address to an IP address?

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Study for the Network Security Instructional Terminology Test. Enhance your knowledge with multiple choice questions, each accompanied by hints and explanations. Ensure readiness for your exam!

Multiple Choice

Which protocol maps a MAC address to an IP address?

Explanation:
MAC-to-IP lookup is handled by a reverse lookup protocol. Reverse ARP is designed to take a device’s MAC address and return the corresponding IPv4 address, allowing a host to learn its own IP without prior configuration. This is the opposite direction of ARP, which maps an IP address to a MAC address. DHCP or BOOTP, while they do assign an IP address to a host, do not map a MAC to an IP; DNS translates domain names to IPs. So the protocol that maps a MAC address to an IP address is Reverse ARP.

MAC-to-IP lookup is handled by a reverse lookup protocol. Reverse ARP is designed to take a device’s MAC address and return the corresponding IPv4 address, allowing a host to learn its own IP without prior configuration. This is the opposite direction of ARP, which maps an IP address to a MAC address. DHCP or BOOTP, while they do assign an IP address to a host, do not map a MAC to an IP; DNS translates domain names to IPs. So the protocol that maps a MAC address to an IP address is Reverse ARP.

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