Reconfiguring which of the following firewall types will prevent inward downloading of files through the File Transfer Protocol (FTP)?

A. Circuit gateway

B. Application gateway

C. Packet filter

D. Screening router

Explanation:

An application gateway firewall is effective in preventing applications, such as FTPs, from entering the organization network. A circuit gateway firewall is able to prevent paths or circuits, not applications, from entering the organizations network. A packet filter firewall or screening router will allow or prevent access based on IP packets/address.