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Refer to the exhibit. If the route to 10.1.1.1 is removed from the R2 routing table, which server becomes the master NTP server?
Correct Answer: D
Explanation/Reference: Explanation: NTP uses a concept called "stratum" that defines how many NTP hops away a device is from an authoritative time source. For example, a device with stratum 1 is a very accurate device and might have an atomic clock attached to it. Another NTP server that is using this stratum 1 server to sync its own time would be a stratum 2 device because it's one NTP hop further away from the source. When you configure multiple NTP servers, the client will prefer the NTP server with the lowest stratum value. Reference: https://networklessons.com/network-services/cisco-network-time-protocol-ntp/