Which protocol is used for secure data transmission over the internet?

Which protocol is used for secure data transmission over the internet?

• A. HTTP
• B. FTP
• C. SSL/TLS
• D. Telnet

Answer: (C)

The chosen answer relates to protocols that ensure secure data transmission over the internet. SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are cryptographic protocols designed specifically to provide secure communication over networks. They work by encrypting data sent between a client and a server, making it extremely difficult for unauthorized parties to intercept or alter it during transmission. This is especially vital for applications like online banking, email, and any transactions that require sensitive information. HTTP, while it facilitates data communication, is not secure on its own. It does not incorporate encryption, meaning that any data sent over HTTP can be easily intercepted. FTP (File Transfer Protocol) is primarily used for transferring files and lacks security features; it transmits data in plaintext. Telnet is also a protocol used for accessing remote devices, but like HTTP and FTP, it does not provide any form of encryption, allowing for potential interception of sensitive data. Therefore, the use of SSL/TLS is fundamental for safe communication online, ensuring that data remains confidential and secure from potential attacks.

The chosen answer relates to protocols that ensure secure data transmission over the internet. SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are cryptographic protocols designed specifically to provide secure communication over networks. They work by encrypting data sent between a client and a server, making it extremely difficult for unauthorized parties to intercept or alter it during transmission. This is especially vital for applications like online banking, email, and any transactions that require sensitive information.

HTTP, while it facilitates data communication, is not secure on its own. It does not incorporate encryption, meaning that any data sent over HTTP can be easily intercepted. FTP (File Transfer Protocol) is primarily used for transferring files and lacks security features; it transmits data in plaintext. Telnet is also a protocol used for accessing remote devices, but like HTTP and FTP, it does not provide any form of encryption, allowing for potential interception of sensitive data.

Therefore, the use of SSL/TLS is fundamental for safe communication online, ensuring that data remains confidential and secure from potential attacks.