Final answer:
The authentication method described in the question is Kerberos. Kerberos is a network authentication protocol used by Windows machines to provide secure authentication between clients and servers in a distributed network environment.
Step-by-step explanation:
The authentication method described in the question is Kerberos. Kerberos is a network authentication protocol used by Windows machines to provide secure authentication between clients and servers in a distributed network environment. When a user logs into a Windows machine using Kerberos authentication, they receive a time-limited ticket called a TGT (Ticket Granting Ticket). This TGT allows them to access various resources and services within the network without having to re-enter their credentials. Kerberos relies on a trusted third-party server called the Key Distribution Center (KDC) to issue and validate these tickets, ensuring that once users are authenticated, they are trusted by the system.