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CompTIA

SK0-004 · Question #175

Which of the following is the purpose of an NTP server?

The correct answer is B. For synchronizing clocks on network devices. NTP (Network Time Protocol) exists solely to synchronize clocks across network devices and hosts. The other options describe unrelated server roles.

Server administration

Question

Which of the following is the purpose of an NTP server?

Options

  • AFor hosting instant messaging applications
  • BFor synchronizing clocks on network devices
  • CFor file sharing and collaboration
  • DFor hosting newsgroups

How the community answered

(39 responses)
  • A
    5% (2)
  • B
    90% (35)
  • C
    3% (1)
  • D
    3% (1)

Why each option

NTP (Network Time Protocol) exists solely to synchronize clocks across network devices and hosts. The other options describe unrelated server roles.

AFor hosting instant messaging applications

Instant messaging applications are served by protocols such as XMPP or IRC, not NTP.

BFor synchronizing clocks on network devicesCorrect

NTP operates on UDP port 123 and is designed specifically to synchronize system clocks across networked devices to a common time source. Accurate timekeeping is critical for logging, authentication (e.g., Kerberos tickets), and certificate validation. NTP servers form a hierarchy of strata, with stratum 0 being atomic/GPS reference clocks.

CFor file sharing and collaboration

File sharing and collaboration are handled by protocols such as SMB, NFS, or SharePoint, not NTP.

DFor hosting newsgroups

Newsgroups are hosted by NNTP (Network News Transfer Protocol) servers, which are entirely separate from NTP.

Concept tested: NTP server function and UDP port 123

Source: https://learn.microsoft.com/en-us/windows-server/networking/windows-time-service/how-the-windows-time-service-works

Topics

#NTP#time synchronization#network services

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