What does RADIUS stand for?

What does RADIUS stand for?

• A. Remote Authentication Dial-In User Service
• B. Remote Access Dial-In User Protocol
• C. Remote Access Directory for Internet Services
• D. Remote Authentication Dial-In User System

Answer: (A)

RADIUS stands for Remote Authentication Dial-In User Service. This acronym describes a network protocol used to centralize authentication, authorization, and accounting for remote access. “Remote Authentication” means validating a user’s credentials from a central server; “Dial-In” reflects the original dial-up access scenario (though it now covers VPNs and wireless access as well); and “User Service” indicates the service provided to the user during login. The other options mix terms that don’t match the official name—using Protocol, Directory, or System instead of Service—so they don’t fit the acronym.

RADIUS stands for Remote Authentication Dial-In User Service. This acronym describes a network protocol used to centralize authentication, authorization, and accounting for remote access. “Remote Authentication” means validating a user’s credentials from a central server; “Dial-In” reflects the original dial-up access scenario (though it now covers VPNs and wireless access as well); and “User Service” indicates the service provided to the user during login. The other options mix terms that don’t match the official name—using Protocol, Directory, or System instead of Service—so they don’t fit the acronym.