350-401 Question #742: Real Exam Question with Answer & Explanation

The correct answer is A: client/server. NTPv4 supports various operating modes for time synchronization, with client/server and broadcast being two commonly implemented and distinct variants.

Submitted by luis.pe· Mar 6, 2026DOMAIN_NOT_PROVIDED

Question

What are the two variants of NTPv4? (Choose two.)

Options

Aclient/server
Bbroadcast
Cmulticast
Dasymmetric
Eunicast

Explanation

NTPv4 supports various operating modes for time synchronization, with client/server and broadcast being two commonly implemented and distinct variants.

Common mistakes.

C. Multicast mode is indeed an NTP variant but is less common than client/server or broadcast modes; if only two are requested, A and B are typically considered the primary foundational variants.
D. Asymmetric is not a standard, recognized operating mode for NTPv4; NTP modes define how time exchange occurs (e.g., client/server, broadcast, symmetric).
E. Unicast describes the addressing method used in client/server and symmetric modes, where packets are sent to a specific address, rather than being a distinct NTP operating variant itself.

Concept tested. NTPv4 operating modes

Reference. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/netmgmt/configuration/15-mt/nm-ntp-15-mt-book/nm-ntp-cfg.html

Topics

#NTP#NTPv4 modes

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