Final answer:
The Windows Remote Desktop application uses the Remote Desktop Protocol (RDP) for secure, encrypted transmissions, distinct from FTP, SSL, and SSH protocols which serve different purposes.
Step-by-step explanation:
The Windows Remote Desktop application utilizes the Remote Desktop Protocol (RDP) to provide secure, encrypted transmissions. While other protocols like File Transfer Protocol (FTP), Secure Sockets Layer (SSL), and Secure Shell (SSH) exist and are used for various network services, RDP is specifically designed for remote desktop access. RDP allows for the secure transmission of windows, graphics, and keyboard and mouse data between a local computer and a remote computer.