Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) — Question 442

How do stratum levels relate to the distance from a time source?

Answer options

• A. Stratum 0 devices are connected directly to an authoritative time source.
• B. Stratum 1 devices are connected directly to an authoritative time source.
• C. Stratum 15 devices are connected directly to an authoritative time source.
• D. Stratum 15 devices are an authoritative time source.

Correct answer: B

Explanation

Stratum 1 devices are directly connected to an authoritative time source, making them one level above the source. Stratum 0 devices are typically not considered in the hierarchy for client connections, and Stratum 15 devices do not connect to an authoritative time source, as they are far removed in the hierarchy. Thus, only Stratum 1 indicates the closest connection to the source.