Final answer:
SSL commonly uses port 443 to establish a secure, encrypted connection between a server and a client. Port 80 is for unsecured HTTP traffic, and port 445 is for Microsoft-DS SMB file sharing.
Step-by-step explanation:
SSL, or Secure Sockets Layer, is a protocol used for establishing a secured and encrypted link between a web server and a browser.
This technology ensures that all data transmitted between the web server and browsers remain private and integral. The port that SSL typically uses to transfer data securely over the Internet is port 443. In contrast, port 80 is generally used for non-secured HTTP traffic, and port 445 is used for Microsoft-DS (Directory Services) SMB file sharing.