Servers that lose all valid time sources automatically set themselves as Stratum ________________.0 points1415infiniteundefined

Step 1: Understand Stratum Levels

In network time synchronization, particularly in the NTP (Network Time Protocol) hierarchy, the "stratum" level indicates how far a server is from the reference clock. Stratum levels range from 0 to 15, with lower numbers indicating a more direct and reliable source of time.

Step 2: Analyze the Question

When a server loses all valid time sources, it cannot synchronize with any time reference. In NTP terminology, such a server would categorize itself according to its inability to find a reliable time source.

Step 3: Identify the Correct Stratum Level

In NTP:

• Stratum 0 is reserved for reference clocks (like atomic clocks or GPS).
• Stratum 1 servers are directly connected to Stratum 0 sources.
• Higher stratum levels (from 2 to 15) represent increasing degrees of separation from a reference time source.

When a server has no valid time sources, it will classify itself as Stratum 16, indicating that it is "unsynchronized" and cannot provide a valid time.

Final Answer

Servers that lose all valid time sources automatically set themselves as Stratum 16.