During time settings verification, what observation indicates proper time synchronization when more than one time server exists?

• A. Time servers do not communicate with each other
• B. Time servers peer with one another to keep accurate time when more than one is present
• C. Time signals can come from any device
• D. Time synchronization is optional

Answer: (B)

When more than one time server is in use, they must peer with each other to stay in sync. Peering creates a shared reference and mutual cross-checks, so each server can detect and correct drift. This keeps all devices in the environment stamping events with the same accurate time, which is essential for reliable logs and proper event correlation. In PCI DSS, precise and consistent timestamps across systems are required for audit trails and investigations, so a network of time servers that cooperate to maintain alignment is the appropriate approach.

Options suggesting time servers don’t communicate, accepting signals from any device, or treating time synchronization as optional would lead to inconsistent or untrusted timestamps and weaken log integrity.