CISSP Practice Exam 2026 – Complete Prep Guide

EAP-TLS, or Extensible Authentication Protocol-Transport Layer Security, is known for its robust security features, primarily due to its reliance on public key infrastructure (PKI) for the authentication process. This approach involves the use of digital certificates for both the client and the server, which helps to establish a secure connection by ensuring that both parties are genuinely who they claim to be.

The use of PKI in EAP-TLS allows for mutual authentication, where both the client and the server verify each other's certificates. This significantly enhances security because it prevents unauthorized access and man-in-the-middle attacks. By leveraging strong cryptographic methods, EAP-TLS can provide a high level of assurance about the identity of the entities involved in the communication.

In contrast, the other options do not accurately represent the characteristics of EAP-TLS. The protocol does not simplify authentication as it requires both sides to possess certificates, complicating the setup and management. Client-side certificates are indeed a requirement for EAP-TLS, contrary to what is suggested in the second option. Lastly, while EAP-TLS is commonly used in wireless networks, its application is not limited to them, as it can also be utilized in wired networks or VPNs. Thus, the