Which of the following statements about Portal authentication is incorrect?

Portal authentication, also known as web authentication, is used to authenticate user identities on a web authentication page.

Which of the following statements about Portal authentication is incorrect?
A . Before Portal authentication, the authentication client must obtain the IP address and be able to communicate with the Portal server.
B. In most cases, Portal authentication does not require installation of dedicated client software. Therefore, Portal authentication is mainly used in scenarios where no client software is available.
C. When Portal authentication is deployed on the network, clients to be authenticated must support the Portal protocol.
D. Portal authentication can authenticate users based on the combination of user name, VLAN, IP address, and MAC address.

View Answer

Answer: C