Ethical Hacking Essentials Practice Test

Which authentication protocol uses both an authentication server and a ticket-granting server?

1. Secure Socket Layer (SSL)

2. Kerberos

3. Extensible Authentication Protocol (EAP)

4. Transport Layer Security (TLS)

The correct answer is: Kerberos

The chosen answer, which indicates that Kerberos is the correct authentication protocol, is accurate because it specifically employs both an authentication server and a ticket-granting server as part of its design. In the Kerberos authentication protocol, when a user attempts to log on, their request is first sent to the authentication server. This server verifies the user's credentials and, upon successful authentication, issues a ticket. This ticket allows the user to request access to other services within the network. The ticket is then presented to a ticket-granting server, which validates it and issues service tickets for specific applications or resources, facilitating secure access without requiring the user to repeatedly enter their credentials. Kerberos's dual server mechanism enhances security and efficiency in a networked environment, as it minimizes the number of times a password must be transmitted over the network and provides mutual authentication between users and services. Other protocols listed do not utilize the same dual-server system. SSL and TLS are cryptographic protocols designed for secure communication over a computer network but do not involve authentication servers or ticket-granting processes. The Extensible Authentication Protocol (EAP) is a framework for wireless network authentication but also does not specifically employ both an authentication server and a ticket-granting server like Ker