Check Point Certified Security Administrator (CCSA) Practice Exam

RADIUS (Remote Authentication Dial-In User Service) protocol is designed for providing centralized authentication, authorization, and accounting for users who connect and use a network service. One of the fundamental characteristics of RADIUS is the choice of transport protocol for its communication. RADIUS primarily operates over User Datagram Protocol (UDP), which is a connectionless protocol that allows for faster transmission of data without the overhead of establishing a dedicated connection. This attribute is especially suitable for the real-time nature of authentication requests, where speed is essential, and occasional lost packets can be tolerated. The other options presented do not align with the standard operation of RADIUS. CCP (Cisco Control Protocol) and TDP (Tag Distribution Protocol), while relevant in their own contexts, are not utilized for RADIUS communication. HTTP (Hypertext Transfer Protocol) is primarily used for web traffic and is not applicable here as RADIUS operates specifically over UDP. Thus, the correct answer reflects the foundational aspect of how RADIUS communicates effectively with network gateways.