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When sending out an ARP request, an IP host is expecting what kind of address for an answer?
Correct Answer: C
The Address Resolution Protocol (ARP) is used to resolve an IP address into a MAC address. When a device sends an ARP request asking "Who has IP X.X.X.X?", it expects a MAC address in response. * A.#VLAN ID - Not involved in ARP * B.#IP address - The IP is already known; MAC is being queried * C.#MAC Address - The required Layer 2 address is returned * D.#802.11g - Wireless standard, irrelevant to ARP Extract from MTCNA Course Material - ARP Basics: "ARP maps IP addresses to MAC addresses. The reply to an ARP request contains the MAC address of the queried IP." Extract from Rene Meneses Study Guide - Layer 2/3 Functions: "ARP is a Layer 2 protocol that returns a MAC address for a known IP."