Alan wants to configure his firewall to allow Microsoft SQL traffic through to the database server from web application servers in a screened subnet design. What is the minimum set of ports that he should port to allow this?

TCP port 1433 is the minimum port requirement for a Microsoft SQL server connection. TCP 3389 is used for Remote Desktop Protocol (RDP). TCP 8080 is a common alternate port for web servers, and TCP 139 and 445 are used for SMB connections.