Final answer:
Secure Web connections are primarily established through HTTPS, which encrypts communications between a user's browser and the website. HTTPS is essential for protecting sensitive transactions on the internet, such as those involving credit card information or login details.
Step-by-step explanation:
Secure Web connections are based on HTTPS, which stands for Hypertext Transfer Protocol Secure. It is the secure version of HTTP, the protocol over which data is sent between your browser and the website that you are connected to. The 'S' at the end of HTTPS stands for 'Secure'. It means all communications between your browser and the website are encrypted using a secure sockets layer (SSL)/transport layer security (TLS) protocol.
HTTPS is widely used on the internet for securing the communication between a user's browser and the web server, especially during transactions that involve sensitive information like credit card details and login credentials.
Other options such as DNS (Domain Name System), FTP (File Transfer Protocol), and FTPS (File Transfer Protocol Secure) are also related to web communication, but HTTPS is specifically designed for secure web connections.