Which three authentication methods does the Cisco IBNS Flexible Authentication feature support? (Choose three.)
The Cisco Identity-Based Networking Services (IBNS) Flexible Authentication feature provides a comprehensive set of authentication methods to secure network access. The feature supports the following three authentication methods:
A. Cut-through Proxy: This authentication method allows the network device to proxy the authentication process to an external authentication server, such as RADIUS or TACACS+. When a user attempts to access the network, the network device prompts the user for their credentials. Once the user provides their credentials, the network device sends the credentials to the external authentication server for verification.
B. 802.1X: This authentication method is an industry-standard protocol that provides port-based network access control. It requires the client device to provide valid credentials, such as a username and password or a digital certificate, before allowing access to the network. The credentials are verified by an authentication server such as RADIUS or TACACS+.
C. MAC Authentication Bypass (MAB): This authentication method allows devices to be authenticated based on their MAC address. When a device attempts to access the network, the network device retrieves the MAC address of the device and sends it to an authentication server. The authentication server checks the MAC address against a list of authorized MAC addresses and grants or denies access accordingly.
D. Single Sign-On (SSO): This authentication method allows users to access multiple network resources using a single set of credentials. SSO is designed to simplify the authentication process and reduce the number of times users need to enter their credentials.
E. Web Authentication: This authentication method requires users to provide their credentials through a web page. Once the user enters their credentials, the network device sends the credentials to an authentication server for verification.
In summary, the Cisco IBNS Flexible Authentication feature supports Cut-through Proxy, 802.1X, and MAC Authentication Bypass (MAB) authentication methods. Single Sign-On (SSO) and Web Authentication are not part of the Flexible Authentication feature.