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?

Question

Options

• Antp master 0
• Bntp server allow all
• Cntp server source
• Dntp master 2

• A
  4% (1)
• C
  4% (1)
• D
  92% (24)

Explanation

The command configures the Cisco Unified Border Element (CUBE) router to act as an NTP server for other devices, such as a Cisco UCM server. The numeric value (e.g., 2) specifies the stratum level of the CUBE router as an NTP server. Stratum levels indicate the distance of the NTP server from a reference clock (e.g., stratum 1 is directly connected to a Why use ntp master 2? By configuring the CUBE as an NTP server (stratum 2 in this case), it allows the Cisco UCM to synchronize time with the CUBE. This setup is common when the CUBE is synchronized with a public NTP server. Setting the stratum level to 2 indicates that the CUBE is synchronized to an external NTP server, providing accurate time to connected devices like Cisco UCM. Accurate time synchronization is critical in VoIP and collaboration environments for features such as call detail records (CDRs), troubleshooting logs, and secure communication (e.g., TLS).

No community discussion yet for this question.