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What must happen if a DHCP IP conflict occurs?

Proxy ARP will fix the issue
The client uses a gratuitous ARP to fix the issue
The administrator must fix the conflict by hand at the DHCP server
The DHCP server will reassign new IP addresses to both computers

Correct Answer: The administrator must fix the conflict by hand at the DHCP server

Explanation:

If a DHCP Conflict is detected, either by the server sending a ping and getting response or by a host using a gratuitous ARP (arp'ing for its own IP address and seeing if a host responds), then the server will hold that address and not use it again until it is fixed by an administrator.

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