Can you walk me through the steps used to set up a firewall?

"The steps I use to set up a firewall begin with connecting the firewall device to the network and setting up a unique username and password. Then, I disable the remote administration feature to prevent hackers from gaining control of the firewall. The next step is to configure the port forwarding so applications that use this feature will perform properly. Then, I configure the DHCP server to remove any conflicts. Next, I enable logging, which provides me the ability to better manage the firewall. Finally, I configure the policies so the firewall functions as I intend it to."

This is an operational question. When the interviewer asks an operational question, they seek to understand how you go about doing your job. The best way to respond to an operational question is to break the process into individual steps and then walk the interviewer through these. As with technical questions, keep your answers brief and to the point. You should also anticipate follow-up questions.