Which option is likely the issue?

Refer to the Following.

NTP authentication-key 10 md5 cisco123

ntp trusted-key 10

A network engineer is testing NTP authentication, and realizes that any device can synchronize time with this router and that NTP authentication is not enforced.

Which option is likely the issue?
A . Only SHA-1 is allowed as a hashing algorithm for NTP authentication.
B . The key must be configured in hashed format, not plain text.
C . NTP authentication needs to be specifically enabled.
D . The router must be rebooted before NTP can update.

View Answer

Answer: C