Transport Layer Security (TLS) is the type of Extensible Authentication Protocol (EAP) that the organization would use during this authentication. EAP is a framework that enables the use of various authentication methods and protocols in wireless and remote access networks. EAP supports different types of credentials, such as passwords, tokens, certificates, or biometrics. EAP-TLS is a type of EAP that uses TLS to provide mutual authentication and encryption between the client and the server, using digital certificates. EAP-TLS is considered one of the most secure and robust EAP methods, as it prevents man-in-the-middle, replay, and dictionary attacks, and provides confidentiality, integrity, and non-repudiation for the authentication process.
References: CISSP All-in-One Exam Guide, Eighth Edition, Chapter 4: Communication and Network Security, page 175. CISSP Practice Exam | Boson, Question 12.