A network administrator needs to allow only one Telnet connection to a router. For anyone viewing
the configuration and issuing the show run command, the password for Telnet access should be
encrypted. Which set of commands will accomplish this task?
A.
service password-encryptionaccess-list 1 permit 192.168.1.0 0.0.0.255line vty 0
4loginpassword ciscoaccess-class 1
B.
service password-encryptionline vty 1loginpassword cisco
C.
enable password secretline vty 0loginpassword cisco
D.
service password-encryptionline vty 0 4loginpassword cisco