Refer to exhibit.

A network administrator cannot establish a Telnet session with the indicated router. What is the
cause of this failure?

A.
A Level 5 password is not set.

B.
An ACL is blocking Telnet access.

C.
The vty password is missing.

D.
The console password is missing.

Explanation:
The login keyword has been set, but not password. This will result in the “password required, but
none set” message to users trying to telnet to this router.