Best answer by Jon Hall
For the past several months the NCP exam has been delivered through our test delivery vendor, ProctorTrack. ProctorTrack does not support scaled scoring, so if you took the exam through ProctorTrack, you needed a minimum of 75% to pass the exam.
As of 1/4/2019 the exam is being delivered through a new vendor and is streamlined to be accessible directly from the Nutanix site. We sincerely hope you will find the new process to be even easier and a better overall experience than our legacy process was. The new delivery system does support scaled scoring, and the pass score for the exam is 3000. For more on scaled scoring, see @yamcors post in this thread.