📖 What is NTP Stratum?

A hierarchical level in the NTP architecture that represents the distance from the reference clock. Stratum 0 devices are atomic clocks, Stratum 1 servers are directly connected to Stratum 0, and so on.

🥋 Sensei Says:

"The lower the stratum number, the more accurate the time source is considered. Stratum 15 is the maximum valid stratum; Stratum 16 indicates a device is unsynchronized."

📚 Certification: Certified Network Associate (200-301)

🔑 What are the Key Concepts of NTP Stratum?

  • Stratum Levels
  • UDP Port 123
  • Clock Synchronization

🎯 How does NTP Stratum appear on the 200-301 Exam?

Correlating syslogs across devices

Troubleshooting cert expiration due to bad time

❓ Frequently Asked Questions

What is NTP?

Network Time Protocol.


Why is NTP important?

For logging and cryptography.

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