Inverse ARP serves what purpose?

Question

There are two protocols ARP and RARP, I would like to know the difference between these any example would be helpful?

Answer 1

Inverse ARP Inverse Address Resolution Protocol: A technique by which dynamic mappings are constructed in a network, allowing a device such as a router to locate the logical network address and associate it with a permanent virtual circuit (PVC). Commonly used in Frame Relay to determine the far-end node’s TCP/IP address by sending the Inverse ARP request across the local DLCI.