Implementing and Operating Cisco Security Core Technologies (SCOR) — Question 133

An engineer is implementing NTP authentication within their network and has configured both the client and server devices with the command ntp authentication-key 1 md5 Cisc392481137. The server at 1.1.1.1 is attempting to authenticate to the client at 1.1.1.2, however is unable to do so. Which command is required to enable the client to accept the server's authentication key?

Answer options

• A. ntp server 1.1.1.2 key 1
• B. ntp peer 1.1.1.2 key 1
• C. ntp server 1.1.1.1 key 1
• D. ntp peer 1.1.1.1 key 1

Correct answer: C

Explanation

The correct answer is C, as the command ntp server 1.1.1.1 key 1 allows the client to recognize and accept the authentication key from the server at 1.1.1.1. Options A and B are incorrect because they reference the wrong IP address for the server. Option D incorrectly uses 'peer' instead of 'server', which is not applicable in this context.