CompTIA Security+ Exam Prep

Answer: B - The Secure Socket Layer (SSL) works at the transport layer and performs authentication by certification. SSL uses public key encryption and provides data encryption, server authentication, message integrity, and optional client authentication. In the protocol stack, SSL lies beneath the application layer and above the network layer. This ensures that SSL is not limited to specific application protocols and can still use the communication transport standards of the Internet. SSL was developed by Netscape. It is not an open-community protocol. The technology community cannot easily extend SSL to interoperate and expand in its functionality.