What is the protocol that is used to discover a physical address from a known logical address and what message type does it use?
- PING, broadcast
- DNS, unicast
- DNS, broadcast
- PING, multicast
- ARP, multicast
- ARP, broadcast
Explanation: An ARP request is broadcast to all devices on a LAN segment which seek the MAC address for a known IP address. Pings are used to verify connectivity between two devices, and DNS resolves URLs to IP addresses.
Exam with this question: Checkpoint Exam: ARP, DNS, DHCP and the Transport Layer Answers
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