CompTIA Security+ Question B-76

Users are trying to communicate with a network but are unable to do so. A network administrator sees connection attempts on port 20 from outside IP addresses that are being blocked. How can the administrator resolve this?

A. Enable stateful FTP on the firewall
B. Enable inbound SSH connections
C. Enable NETBIOS connections in the firewall
D. Enable HTTPS on port 20

Answer: A