A firewall administrator has configured a new screened subnet to allow public systems to be segmented from the organization's internal network. The firewall now has three security zones set: Untrusted (Internet) [ ]; DMZ (Screened Subnet) [ ]; Trusted (Intranet) [ ]. The firewall administrator has been asked to enable remote desktop access from a fixed IP on the remote network to a remote desktop server in the screened subnet for the Chief Security Officer to work from his home office after hours. The CSO's home internet uses a static IP of _______. The remote desktop server is assigned a public-facing IP of _______. What rule should the administrator add to the firewall?
1) Permit RDP 3389
2) Permit SSH 22
3) Permit HTTP 80
4) Permit FTP 21