Which command collects the number of time samples from several time sources?

Which command collects the number of time samples from several time sources?

• A. ntpdc
• B. ntpd
• C. ntpdate
• D. ntptrace

Answer: (C)

The key idea is a one-shot client that gathers time data from multiple NTP servers to set the local clock. ntpdate is designed to query NTP sources and adjust the system time in a single operation. If you point it at several time servers, it will contact them during that run and use the received time to set the clock, effectively collecting time samples in that moment. It’s not a running service, unlike ntpd which continuously collects samples and keeps the clock in sync. ntpdc is a control/query tool for a running ntpd, and ntptrace is a diagnostic tracer for NTP traffic, not a one-time sampling and set operation.

The key idea is a one-shot client that gathers time data from multiple NTP servers to set the local clock. ntpdate is designed to query NTP sources and adjust the system time in a single operation. If you point it at several time servers, it will contact them during that run and use the received time to set the clock, effectively collecting time samples in that moment. It’s not a running service, unlike ntpd which continuously collects samples and keeps the clock in sync. ntpdc is a control/query tool for a running ntpd, and ntptrace is a diagnostic tracer for NTP traffic, not a one-time sampling and set operation.