Which port is typically associated with SSL connections?

The port typically associated with SSL (Secure Sockets Layer) connections is 443. This port is designated for HTTPS, which is the secure version of HTTP, and it ensures that communications over the internet are encrypted for security. SSL/TLS protocols are used to secure the data transmitted between a web server and a client's browser, and this communication is primarily done using port 443.

In contrast, port 80 is used for unencrypted HTTP traffic, making it unsuitable for secure connections. Port 25 is traditionally used for sending emails via SMTP, and port 21 is used for FTP (File Transfer Protocol), which is not secure by default. Therefore, when it comes to SSL connections, port 443 is the correct choice due to its role in facilitating secure communication.