CompTIA Server+ (SK0-005)Security and Disaster RecoveryMedium
A server administrator needs to implement a solution for managing user identities and access across multiple applications and services within a large enterprise. The solution must support centralized authentication and authorization, and be widely compatible with various operating systems and network devices. Which of the following protocols would BEST meet these requirements?
- ARADIUS
- BSNMP
- CFTP
- DSMTP
Show answer & explanationAnswer & explanation
Correct answer: A. RADIUS
RADIUS is a widely adopted networking protocol that provides centralized authentication, authorization, and accounting (AAA) management for users connecting to a network service. It is highly compatible with various network access servers and operating systems, making it suitable for a large enterprise with diverse systems.
Why the other options are wrong
- B. SNMP (Simple Network Management Protocol) is used for monitoring network devices, not for user authentication or authorization.
- C. FTP (File Transfer Protocol) is used for transferring files between computers and does not provide centralized identity or access management.
- D. SMTP (Simple Mail Transfer Protocol) is used for sending and receiving email and is unrelated to user identity management.
RADIUS (Remote Authentication Dial-In User Service)
A networking protocol that provides centralized authentication, authorization, and accounting (AAA) management for users connecting to a network service.
- Centralized AAA services.
- Widely used for network access.
- Operates over UDP.
Memory trick: RADIUS: Reach All Devices, Identify Users Securely.