Implementing Cisco Enterprise Network Core Technologies (350-401 ENCOR) Exam Materials - Question #211 Discussion

The login method is configured on the VTY lines of a router with these parameters: - The first method for authentication is TACACS - If TACACS is unavailable, login is allowed without any provided credentials Which configuration accomplishes this task? (Choose one answer)

• A. R1#sh run | include aaa
  aaa new-model
  aaa authentication login default group tacacs+ none
  aaa session-id common
  
  R1#sh run | section vty
  line vty 0 4
  password 7 0205040809
  
  R1#sh run | include username
  R1#
• B. R1#sh run | include aaa
  aaa new-model
  aaa authentication login telnet group tacacs+ none
  aaa session-id common
  
  R1#sh run | section vty
  line vty 0 4
  
  R1#sh run | include username
  R1#
• C. R1#sh run | include aaa
  aaa new-model
  aaa authentication login default group tacacs+
  aaa session-id common
  
  R1#sh run | section vty
  line vty 0 4
  transport input none
  
  R1#
• D. R1#sh run | include aaa
  aaa new-model
  aaa authentication login VTY group tacacs+ none
  aaa session-id common
  
  R1#sh run | section vty
  line vty 0 4
  password 7 0205040809
  
  R1#sh run | include username
  R1#

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