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Exam NCP topic 1 question 140 discussion

Actual exam question from Nutanix's NCP
Question #: 140
Topic #: 1
[All NCP Questions]

An administrator has a 5-node cluster configured for RF2 with 200 TB of raw disk space. The administrator decides to enable Erasure coding to gain additional usable space.
Approximately how much usable space would be available after enabling Erasure coding?

  • A. 100 TB
  • B. 125 TB
  • C. 150 TB
  • D. 175 TB
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Suggested Answer: C 🗳️
by josecong at Feb. 6, 2021, 5:48 a.m.

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egossick
Highly Voted 2 years ago
The answer is C 5 nodes: 1 parity codes 3 parts of data => ¾ of the data written is actual data. 200TiB x¾ (or 200TiB /1.33) = 150TiB https://next.nutanix.com/how-it-works-22/question-regarding-erasor-coding-37713
upvoted 6 times
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Orion19
Most Recent 1 year, 7 months ago
I believe answer is C
upvoted 3 times
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josecong
2 years, 1 month ago
Answer A https://portal.nutanix.com/page/documents/solutions/details?targetId=TN-2002-Erasure-Coding:TN-2002-Erasure-Coding
upvoted 2 times
Spawn90
4 months ago
According to your link, it's C, answer is in the table
upvoted 1 times
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