What is needed for the successful synchronization between NTP servers with enabled authentication?

What is needed for the successful synchronization between NTP servers with enabled authentication?You can configure the Cisco CG-OS router to authenticate the time sources to which the local clock synchronizes. When you enable NTP authentication, the Cisco CG-OS router synchronizes to a time source only if the source carries one of the authentication keys specified by the ntp trusted-key command. The Cisco CG-OS router drops any packets that fail the authentication check and prevents them from updating the local clock.

Question:

What is needed for the successful synchronization between NTP servers with enabled authentication?

Options:

NTP Trusted Key

TLS certification (NTP certificates)

Stratum hash

Something else

Correct Answer

The Correct Answer for this Question is

NTP Trusted Key

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