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Question

Which set of Cisco Internetwork Operating System (IOS) commands is used on Cisco routers to set a password for Telnet lines?

A.	`router(config-router)# line vty 0 4 router(config-line)# login router(config-line)# password password`
B.	`router(config)# line telnet 0 4 router(config-line)# login router(config-line)# password password`
C.	`router(config)# line aux 0 router(config-line)# login router(config-line)# password password`
D.	`router(config)# line vty 0 4 router(config-line)# login router(config-line)# password password`

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Accepted Answer


router(config)# line vty 0 4
router(config-line)# login 
router(config-line)# password password

Accepted Answer

The following commands are used on Cisco routers to set a password for Telnet lines:

router(config)# line vty 0 4
router(config-line)# login
router(config-line)# password password

Assigning a password to the VTY lines is required for remote connections to the device to be possible. If a password has not been configured the following error message will be generated when the connection is attempted:

Password required but not set
[Connection to foreign host 106.5.5.1 closed by foreign host]