CompTIA Network+ Practice Test

What happens during the T2 timer phase of DHCP renewal?

1. Attempts to renew the lease with the original DHCP server

2. Contacts any available DHCP server for a new lease

3. Releases the IP address after the lease expires

4. Checks for updates to DHCP options

The correct answer is: Contacts any available DHCP server for a new lease

In the context of DHCP (Dynamic Host Configuration Protocol), the T2 timer is a crucial part of the lease renewal process. During the T2 phase, the client attempts to extend its lease on the IP address it has been assigned. If the lease has not been renewed by the T1 timer (which is typically set to 50% of the lease time), the client enters the T2 timer phase when it reaches about 87.5% of the lease duration. It can now contact any available DHCP server, including the ones that may not have originally issued the lease, in order to request a new lease. This broader approach increases the chances of successfully renewing the client's IP address, especially in scenarios where the original DHCP server is unavailable. This process is important as it ensures that devices can maintain their network connectivity without interruptions due to lease expiration. The other options represent different phases or actions that do not accurately describe what happens during the T2 timer phase. The focus is on reaching out to any server rather than just the original one, as the client's goal is to ensure continuity of service.