Which protocol is commonly associated with secure transport?

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

Answer: (C)

HTTPS, or Hypertext Transfer Protocol Secure, is the protocol most commonly associated with secure transport. It builds upon the standard HTTP protocol by adding an additional layer of security via Transport Layer Security (TLS), previously known as Secure Sockets Layer (SSL). HTTPS encrypts the data transmitted between a user's browser and a web server, ensuring that sensitive information—such as login credentials, payment information, and personal data—remains private and secure from eavesdroppers and man-in-the-middle attacks.

Using HTTPS is crucial for maintaining confidentiality and integrity while data is in transit. This secure transport mechanism protects against various attacks, providing authentication of the accessed website and safeguarding data integrity during transmission. This makes it particularly significant for any web activity that requires user trust, such as online banking, shopping, and other sensitive operations.