What is the main purpose of Secure Sockets Layer (SSL)?

The main purpose of Secure Sockets Layer (SSL) is to establish a secure channel between two TCP-based endpoints. SSL is a protocol that ensures the security of data transmitted over the internet by encrypting the communication between web servers and clients, thus providing confidentiality, integrity, and authenticity. This secure channel helps protect sensitive information, such as credit card details and personal identification, from eavesdropping and tampering during transmission.

By enabling secure communication, SSL plays a crucial role in building trust for users interacting with websites, especially those handling sensitive transactions. The encryption process creates a layer of security that makes it exceedingly difficult for unauthorized parties to intercept or modify the data being exchanged.

The other options do not accurately represent the primary function of SSL. While file transfer encryption, network monitoring, and remote access security are important aspects of cybersecurity, they do not reflect the core role of SSL in securing TCP-based communications.