What protocol is used to secure data transmission over a network?

What protocol is used to secure data transmission over a network?

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

Answer: (C)

The protocol that is used to secure data transmission over a network is SSL/TLS. SSL, which stands for Secure Sockets Layer, and its successor, TLS, or Transport Layer Security, work by encrypting the data being transmitted between devices, typically a client and a server. This encryption prevents eavesdropping, tampering, and message forgery, ensuring that the data remains confidential and integral during transmission. When secure communication is established, SSL/TLS works by initiating a handshake process, where the client and server agree on security settings, including the encryption methods to be used and the exchange of keys for encrypting the data. This is crucial for transactions that require confidentiality, such as online banking, shopping, and communications that involve sensitive information. Although other protocols exist for various purposes, they do not inherently provide the same level of security for data transmission as SSL/TLS. For instance, FTP (File Transfer Protocol) is primarily used for transferring files but lacks built-in security measures, while HTTP (Hypertext Transfer Protocol) is employed for web page transfer but does not secure data without an additional layer like HTTPS, which utilizes SSL/TLS. SMTP (Simple Mail Transfer Protocol) is focused on email transmission and does not inherently secure messages either

The protocol that is used to secure data transmission over a network is SSL/TLS. SSL, which stands for Secure Sockets Layer, and its successor, TLS, or Transport Layer Security, work by encrypting the data being transmitted between devices, typically a client and a server. This encryption prevents eavesdropping, tampering, and message forgery, ensuring that the data remains confidential and integral during transmission.

When secure communication is established, SSL/TLS works by initiating a handshake process, where the client and server agree on security settings, including the encryption methods to be used and the exchange of keys for encrypting the data. This is crucial for transactions that require confidentiality, such as online banking, shopping, and communications that involve sensitive information.

Although other protocols exist for various purposes, they do not inherently provide the same level of security for data transmission as SSL/TLS. For instance, FTP (File Transfer Protocol) is primarily used for transferring files but lacks built-in security measures, while HTTP (Hypertext Transfer Protocol) is employed for web page transfer but does not secure data without an additional layer like HTTPS, which utilizes SSL/TLS. SMTP (Simple Mail Transfer Protocol) is focused on email transmission and does not inherently secure messages either