What are three characteristics of the RADIUS protocol? (Choose three.) uses UDP ports for authentication and accounting encrypts the entire body of the packet is an open RFC standard AAA protocol separates the authentication and authorization processes supports 802.1X and SIP utilizes TCP port 49 Answers Explanation & Hints: RADIUS is an open-standard AAA protocol using UDP port 1645 or 1812 for authentication and UDP port 1646 or 1813 for accounting. It combines authentication and authorization into one process; thus, a password is encrypted for transmission while the rest of the packet will be sent in plain text. RADIUS offers the expedited service and more comprehensive accounting desired by remote-access providers but provides lower security and less potential for customization than TACACS+.

What are three characteristics of the RADIUS protocol? (Choose three.)

• uses UDP ports for authentication and accounting
• encrypts the entire body of the packet
• is an open RFC standard AAA protocol
• separates the authentication and authorization processes
• supports 802.1X and SIP
• utilizes TCP port 49
  

  Answers Explanation & Hints: RADIUS is an open-standard AAA protocol using UDP port 1645 or 1812 for authentication and UDP port 1646 or 1813 for accounting. It combines authentication and authorization into one process; thus, a password is encrypted for transmission while the rest of the packet will be sent in plain text. RADIUS offers the expedited service and more comprehensive accounting desired by remote-access providers but provides lower security and less potential for customization than TACACS+.