A network administrator configures a new workstation with the IP address 192.168.1.30 and a subnet mask of 255.255.255.0. The workstation needs to communicate with devices outside its local network. Which of the following IP addresses should the administrator set as the default gateway for this workstation?
192.168.2.1
192.168.1.255
255.255.255.0
192.168.1.1