Which protocol family does NTP primarily utilize for time data transmission?

Which protocol family does NTP primarily utilize for time data transmission?

• A. TCP
• B. UDP
• C. ICMP
• D. SCTP

Answer: (B)

NTP uses UDP for time data transmission. It sends and receives small time-sync messages as datagrams over UDP, typically on port 123. The reason is speed and efficiency: a connectionless, low-overhead transport lets NTP exchange timestamps with minimal latency, which is crucial for accurate timekeeping. TCP would introduce extra handshake and potential delays, ICMP isn't designed to carry the timestamp payloads NTP uses, and SCTP isn’t used for this purpose. NTP handles reliability and timing calculations itself, so occasional packet loss can be tolerated without impacting the overall synchronization.

NTP uses UDP for time data transmission. It sends and receives small time-sync messages as datagrams over UDP, typically on port 123. The reason is speed and efficiency: a connectionless, low-overhead transport lets NTP exchange timestamps with minimal latency, which is crucial for accurate timekeeping. TCP would introduce extra handshake and potential delays, ICMP isn't designed to carry the timestamp payloads NTP uses, and SCTP isn’t used for this purpose. NTP handles reliability and timing calculations itself, so occasional packet loss can be tolerated without impacting the overall synchronization.