ITPEC FE Morning April 2021 Question 32
ITPEC FE Morning April 2021 — Question 32 of 80
NTP (Network Time Protocol) — synchronizes clocks across computers using a time server.
NTP operates over UDP port 123 and uses a hierarchical system of time sources called strata.
Why not others:
- (a) FTP — File Transfer Protocol (file transfers, port 21)
- (b) NNTP — Network News Transfer Protocol (Usenet newsgroups, port 119)
- (d) RTP — Real-time Transport Protocol (audio/video streaming)
Key rule: NTP = clock synchronization. If a question mentions "time server" or "synchronizing clocks," the answer is NTP.
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