N10-005 · Question #345
Which of the following protocols is used to send time synchronization updates on a given network?
The correct answer is A. NTP. NTP (Network Time Protocol) is the standard protocol used to synchronize clocks across devices on a network to a common time source.
Question
Which of the following protocols is used to send time synchronization updates on a given network?
Options
- ANTP
- BPOP3
- CDNS
- DIMAP
How the community answered
(62 responses)- A87% (54)
- B3% (2)
- C8% (5)
- D2% (1)
Why each option
NTP (Network Time Protocol) is the standard protocol used to synchronize clocks across devices on a network to a common time source.
NTP operates over UDP port 123 and uses a hierarchical system of time servers (stratum levels) to distribute accurate time synchronization updates to clients across a network. Accurate time is critical for logging, authentication (such as Kerberos), and certificate validation.
POP3 (Post Office Protocol version 3) is used by email clients to retrieve messages from a mail server and has no time synchronization function.
DNS (Domain Name System) resolves hostnames to IP addresses and has no role in clock synchronization.
IMAP (Internet Message Access Protocol) allows email clients to access and manage messages stored on a mail server and is unrelated to time synchronization.
Concept tested: NTP protocol for network time synchronization
Source: https://learn.microsoft.com/en-us/windows-server/networking/windows-time-service/windows-time-service-top
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