ISA/IEC 62443 Cybersecurity Fundamentals Specialist — Question 19

Which is a commonly used protocol for managing secure data transmission on the Internet?

Answer options

• A. Datagram Transport Layer Security (DTLS)
• B. Microsoft Point-to-Point Encryption (MPPE)
• C. Secure Telnet
• D. Secure Sockets Layer (SSL)

Correct answer: D

Explanation

Secure Sockets Layer (SSL) is the correct answer as it is specifically designed to secure data transmitted over the Internet. The other options, while related to security, either serve different purposes (like DTLS for UDP) or are less commonly used for general secure web communication.