2 Comments on “Which of the following is an authentication service that uses UDP as a transport medium?”

1. R says:

   August 13, 2013 at 9:56 pm

   D

   
   
   
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2. meac says:

   June 6, 2018 at 3:46 pm

   Explanation: RADIUS runs in the application layer and makes use of UDP as transport.

   * Terminal Access Controller Access-Control System Plus (TACACS+) is a protocol developed by Cisco and released as an open standard beginning in 1993. Although derived from TACACS, TACACS+ is a separate protocol that handles authentication, authorization, and accounting (AAA) services. It does not use UDP.
   * The Lightweight Directory Access Protocol is an open, vendor-neutral, industry standard application protocol for accessing and maintaining distributed directory information services over an Internet Protocol network
   * KERBEROS is not a transmission protocol. Kerberos is a computer network authentication protocol that works on the basis of tickets to allow nodes communicating over a non-secure network to prove their identity to one another in a secure manner

   
   
   
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