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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 Cisc392368270. The server at 1.1.1.1 is attempting to authenticate to the client at 1.1.1.2, however it is unable to do so.

Which command is required to enable the client to accept the server's authentication key?

A.

ntp peer 1.1.1.1 key 1

Answers
A.

ntp peer 1.1.1.1 key 1

B.

ntp server 1.1.1.1 key 1

Answers
B.

ntp server 1.1.1.1 key 1

C.

ntp server 1.1.1.2 key 1

Answers
C.

ntp server 1.1.1.2 key 1

D.

ntp peer 1.1.1.2 key 1

Answers
D.

ntp peer 1.1.1.2 key 1

Suggested answer: B

Explanation:

To configure an NTP enabled router to require authentication when other devices connect to it, use the following commands:

NTP_Server(config)#ntp authentication-key 2 md5 securitytut

NTP_Server(config)#ntp authenticate

NTP_Server(config)#ntp trusted-key 2

Then you must configure the same authentication-key on the client router:

NTP_Client(config)#ntp authentication-key 2 md5 securitytut

NTP_Client(config)#ntp authenticate

NTP_Client(config)#ntp trusted-key 2

NTP_Client(config)#ntp server 10.10.10.1 key 2

Note: To configure a Cisco device as a NTP client, use the command ntp server <IP address>. For example:

Router(config)#ntp server 10.10.10.1. This command will instruct the router to query 10.10.10.1 for the time.

asked 10/10/2024
Jahcorey Howze
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