Exam 312-38 topic 1 question 460 discussion

A network designer needs to submit a proposal for a company, which has just published a web portal for its clients on the internet. Such a server needs to be isolated from the internal network, placing itself in a DMZ. Faced with this need, the designer will present a proposal for a firewall with three interfaces, one for the internet network, another for the DMZ server farm and another for the internal network. What kind of topology will the designer propose?