Which protocol is commonly used for secure online transactions?

Which protocol is commonly used for secure online transactions?

• A. HTTP
• B. FTP
• C. HTTPS
• D. SMTP

Answer: (C)

The protocol commonly used for secure online transactions is HTTPS. HTTPS, or Hypertext Transfer Protocol Secure, is an extension of HTTP and is designed to provide a secure communication channel over a computer network. It utilizes encryption protocols, such as SSL (Secure Sockets Layer) or TLS (Transport Layer Security), to ensure that the data being transmitted between a user's browser and the web server is protected from eavesdroppers and tampering. When a user engages in online transactions, sensitive information like credit card numbers, personal identification details, and login credentials is exchanged. Using HTTPS ensures that this information is encrypted, making it much harder for unauthorized parties to intercept or read the data. This security aspect is critical in establishing trust between the user and the service provider during transactions, which is essential for e-commerce and online banking activities. In contrast, other protocols like HTTP do not provide this level of security and protection against data breaches, while FTP (File Transfer Protocol) is primarily used for transferring files and is not secure on its own. SMTP (Simple Mail Transfer Protocol) is focused on sending emails and does not secure online transactions. Therefore, HTTPS is the standard for secure online transactions due to its encryption capabilities and establishment of secure connections.

The protocol commonly used for secure online transactions is HTTPS. HTTPS, or Hypertext Transfer Protocol Secure, is an extension of HTTP and is designed to provide a secure communication channel over a computer network. It utilizes encryption protocols, such as SSL (Secure Sockets Layer) or TLS (Transport Layer Security), to ensure that the data being transmitted between a user's browser and the web server is protected from eavesdroppers and tampering.

When a user engages in online transactions, sensitive information like credit card numbers, personal identification details, and login credentials is exchanged. Using HTTPS ensures that this information is encrypted, making it much harder for unauthorized parties to intercept or read the data. This security aspect is critical in establishing trust between the user and the service provider during transactions, which is essential for e-commerce and online banking activities.

In contrast, other protocols like HTTP do not provide this level of security and protection against data breaches, while FTP (File Transfer Protocol) is primarily used for transferring files and is not secure on its own. SMTP (Simple Mail Transfer Protocol) is focused on sending emails and does not secure online transactions. Therefore, HTTPS is the standard for secure online transactions due to its encryption capabilities and establishment of secure connections.