Which technology is used to encrypt data transmission between servers?

Secure Sockets Layer (SSL) is a technology specifically designed to establish an encrypted link between a server and a client, ensuring that all data transmitted remains secure and confidential. SSL works by using a combination of public and private keys to encrypt data, which prevents unauthorized access while in transit. This is crucial for protecting sensitive information, such as personal data and payment details, from being intercepted or tampered with during transmission across the internet.

The foundational role of SSL in securing web traffic has evolved into what is now known as Transport Layer Security (TLS). However, SSL is still widely referenced when discussing secure data transmission. Its main purpose is to secure communication channels, making it well-suited for applications where data integrity and confidentiality are paramount.

Other options do not focus primarily on encrypting data transmission in the same manner. Internet Protocol Security (IPsec) indeed provides encryption for data at the IP layer, but it is not specifically about server-to-server communication like SSL. Simple Mail Transfer Protocol (SMTP) is mostly related to email transmission, while Layer 2 Tunneling Protocol (L2TP) is used for tunneling but does not provide encryption by itself, usually pairing with IPsec to secure data. Thus, SSL stands out as the correct technology