Which command should a technician use to renew an IP address from the DHCP server?

Using the command "ipconfig /renew" allows a technician to request a new IP address from a DHCP (Dynamic Host Configuration Protocol) server, which is essential when a device needs to refresh its network configuration. This command will communicate with the DHCP server to either obtain a new IP address or renew the existing lease on the current IP address.

When a device is connected to a network that uses DHCP, it is assigned an IP address automatically for a certain period, known as the lease time. If the device needs to extend its lease or obtain a different IP address, using "ipconfig /renew" serves that purpose. It sends a request to the DHCP server, which then responds with either a new IP address or confirms the existing one.

In contrast, other options like "ipconfig /release" would be used to disconnect the current IP address but would not automatically renew it; "netstat" provides information about network connections and is not related to IP address management; and "ping" tests connectivity to another device on the network without dealing with any IP address assignments. Thus, "ipconfig /renew" is the correct command for renewing an IP address from a DHCP server, ensuring the device can continue to communicate effectively on the network.