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When there is an IP address conflict, which of the following methods can a DHCP server use to solve the issue?

The DHCP server keeps the IP on the pool and sends an extended PING.

The DHCP server removes the IP from the pool until the IPs are manually cleared.

The DHCP Server will wait for an ECHO reply, remove the IP from the pool and automatically assign the IP to the first available host.

A Gratuitous ARP is sent to detect the conflicting IP and keeps this IP in the pool.


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