Which is used to provide a centralized authentication method from remote locations?

Ok, so the question asks for a centralized Authentication method. This would be the Radius. I realize that "DHCP" is marked as the correct answer, but I believe this to be incorrect as DHCP only assigns unique IP addresses whether there is authentication or not. There is no Method for DHCP itself to validate the incoming connection.

Furthermore, it requests that the connection is from remote locations. connections remotely will not hit a DHCP server until it has Authenticated against any of the above methods first.

to conclude, there is no authentication process in a DHCP server. The authentication part is handled by some or all of the technologies above prior to the request for IP Addresses hitting the DHCP server.

The correct answer to this question is DHCP. Standing for Dynamic Host Configuration Protocol, DHCP is a network protocol. These protocols are used on UDP/IP networks. They assign a server an IP address and various other parameters for every device on the network to communicate with each other.

DHCPs are versatile for they can be used in homes, as well as more extensive networks like businesses or colleges. They can also be implemented through a residential gateway or server. When used through a residential gateway, the DHCP will assign it a global IP address. This address will be unique.