Which two statements about authentication settings for DCNM-LAN are true？ （）
- A If none of the authentication servers that are configured for the current authentication mode responds to an authentication request， the DCNM-LAN server falls back to localauthentication.
- B DCNM-LAN only supports TACACS+.
- C Each DCNM-LAN server will have the same device credentials.
- D Administering DCNM-LAN authentication settings requires an authentication license.
- E DCNM-LAN server users are local to the DCNM-LAN server.