A.The Cisco IOS image file will not be visible in the output from the show flash command.
B.The show version command will not show the Cisco IOS image file location.
C.When the router boots up， the Cisco IOS image will be loaded from a secured FTP location.
D.The running Cisco IOS image will be encrypted and then automatically backed up to a TFTP server.

A.You must then specify the general-purpose key size used for authentication with the crypto key generaters a general-keys modulus command.
B.You must then zeroize the keys to reset secure shell before configuring other parameters.
C.All vty ports are automatically enabled for SSH to provide secure management.
D.The SSH protocol is automatically enabled.