Certified Information Systems Security Professional (CISSP) Practice Exam

The term TLS stands for Transport Layer Security. It is a cryptographic protocol designed to provide secure communication over a computer network. TLS is widely used to secure internet communications and ensuring privacy between applications and users on the internet, such as in web browsing, email, and VoIP.

Transport Layer Security works by encrypting the data being transferred, which protects against eavesdropping and tampering. It operates above the transport layer in the OSI model and can also work with other application layer protocols. This protocol evolved from its predecessor, SSL (Secure Sockets Layer), and has become a standard for establishing a secure connection between web servers and browsers.

The other definitions provided, such as Transfer Layer Security, Tunnel Layer Security, and Trusted Layer Security, are not recognized standards or protocols within the field of network security, making them incorrect in this context. When studying for CISSP or similar examinations, it's important to focus on established terminology and concepts like TLS to ensure a clear understanding of secure communication frameworks.