What type of NTP/time sources are recommended for Nutanix clusters?

The correct answer isB. Internal NTP sources.

Nutanix strongly recommends configuringreliable internal NTP sources(e.g., enterprise-managed NTP servers or domain NTP servers) to ensure:

Time consistency across all nodes and CVMs

Accurate logging, monitoring, authentication (e.g., Kerberos), and cluster operations

Avoiding dependency onexternal/public NTPsources, which may berate-limited, unavailable, or blockedby firewalls

Clarifications:

A (Windows time sources):Generally discouraged unless they are configured to use a stratum 1/2 reliable upstream source.

C (Rate-limited sources):Not recommended; can result in dropped or inconsistent time updates.

D (External ISP NTP):Not preferred for production clusters due to reliability concerns.

Prism UI Navigation Path:

Settings > NTP Servers

Official Reference:

Nutanix Best Practices Guide – NTP Configuration

Excerpt: “Use reliable and consistent internal NTP servers for all Nutanix clusters to maintain time synchronization.”

Answer: B