工程師正在 R1 路由器上專門配置 SSH 版本 2。允許使用加密協議進行遠程管理所需的最低配置是什麼?
A. ostname R1 service password-encryption crypto key generate rsa general-keys modulus 1024 username cisco privilege 15 password 0 cisco123 ip ssh version 2 line vty 0 15 transport input ssh login local
B. ostname R1 ip domain name cisco crypto key generate rsa general-keys modulus 1024 username cisco privilege 15 password 0 cisco123 ip ssh version 2 line vty 0 15 transport input ssh login local
C. ostname R1 crypto key generate rsa general-keys modulus 1024 username cisco privilege 15 password 0 cisco123 ip ssh version 2 line vty 0 15 transport input ssh login local
D. ostname R1 ip domain name cisco crypto key generate rsa general-keys modulus 1024 username cisco privilege 15 password 0 cisco123 ip ssh version 2 line vty 0 15 transport input all login local