In IPv4 DHCP, the T1 renewal timer's first attempt is sent as a DHCPREQUEST in which mode?

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Multiple Choice

In IPv4 DHCP, the T1 renewal timer's first attempt is sent as a DHCPREQUEST in which mode?

Explanation:
At the T1 renewal, the client tries to renew with the same DHCP server that offered the lease by sending a DHCPREQUEST directly to that server’s unicast address. Since the client already knows which server granted the lease, sending the renewal unicast to that server minimizes traffic and avoids unnecessary broadcasts. If the unicast renewal doesn’t succeed, the client can fall back to a broadcast to reach any DHCP server on the network. The initial DORA sequence uses broadcast messages to discover and obtain a lease, but renewal after T1 is specifically directed to the server that issued the lease, via unicast.

At the T1 renewal, the client tries to renew with the same DHCP server that offered the lease by sending a DHCPREQUEST directly to that server’s unicast address. Since the client already knows which server granted the lease, sending the renewal unicast to that server minimizes traffic and avoids unnecessary broadcasts. If the unicast renewal doesn’t succeed, the client can fall back to a broadcast to reach any DHCP server on the network.

The initial DORA sequence uses broadcast messages to discover and obtain a lease, but renewal after T1 is specifically directed to the server that issued the lease, via unicast.

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