Which statement about NTP synchronization accuracy is true?

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Multiple Choice

Which statement about NTP synchronization accuracy is true?

Explanation:
NTP is built to keep your system clock aligned with UTC by continuously exchanging time stamps, measuring network delays, and computing the offset between the local clock and the reference time. With proper configuration and good network conditions, NTP can achieve synchronization within a few milliseconds of UTC. This millisecond-level accuracy is one of the protocol’s main goals, especially on a well-connected network or LAN, where latency and jitter are low. The other statements aren’t generally true: NTP can work even if DNS isn’t used (it can operate with direct IP addresses), it doesn’t require port 123 to be open in every possible scenario (firewall and network setup can vary), and it is designed to work across WANs and the Internet, not just within a LAN.

NTP is built to keep your system clock aligned with UTC by continuously exchanging time stamps, measuring network delays, and computing the offset between the local clock and the reference time. With proper configuration and good network conditions, NTP can achieve synchronization within a few milliseconds of UTC. This millisecond-level accuracy is one of the protocol’s main goals, especially on a well-connected network or LAN, where latency and jitter are low. The other statements aren’t generally true: NTP can work even if DNS isn’t used (it can operate with direct IP addresses), it doesn’t require port 123 to be open in every possible scenario (firewall and network setup can vary), and it is designed to work across WANs and the Internet, not just within a LAN.

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