Refer to the exhibit. The administrator configured the access to the console and the vty lines of a router. Which conclusion can be drawn from this configuration?
- Access to the vty lines will not be allowed via Telnet by anyone.
- Because the IOS includes the login command on the vty lines by default, access to the device via Telnet will require authentication.
- Unauthorized individuals can connect to the router via Telnet without entering a password.
- Because the login command was omitted, the password cisco command is not applied to the vty lines.
Explanation: By default, the IOS includes the login command on the vty lines. This prevents Telnet access to the device without authentication. If, by mistake, the no login command is set, which removes the requirement for authentication, unauthorized persons could connect across the network to the line through Telnet. This would be a major security risk.