Which NTP Stratum is a server directly connected to an authoritative time source?
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Correct answer: Stratum 1.
Why this is the answer
A Stratum 1 server is directly synchronized to an authoritative time source, such as a GPS receiver, atomic clock, or radio clock. These devices are highly accurate and serve as the primary reference for timekeeping in an NTP hierarchy. Stratum 0 refers to the authoritative time source itself, not the server connected to it. Stratum 14 and Stratum 15 are lower strata levels, indicating a greater distance from the authoritative time source and thus less precise time synchronization. Stratum 16 is considered unsynchronized.
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