Implementing and Operating Cisco Collaboration Core Technologies (CLCOR) — Question 393

An engineer configures NTP on a Cisco Unified Border Element router to synchronize time with a public NTP server. Which command synchronizes a Cisco UCM server to the CUBE router?

Answer options

• A. ntp master 0
• B. ntp server allow all
• C. ntp server source
• D. ntp master 2

Correct answer: D

Explanation

The correct command, 'ntp master 2', establishes the CUBE router as an NTP master with a stratum of 2, allowing the Cisco UCM server to synchronize with it. The other options either configure the router as a server without establishing master status or do not set the required stratum level for synchronization.