350-601 Compute Practice Question
A HyperFlex cluster uses replication factor 3 (RF3) and consists of 4 all-flash nodes. One node fails permanently. After replacing the node, the cluster re-replicates data. What is the minimum number of additional node failures that can be tolerated without data loss after re-replication completes?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
2
With RF3 (three copies of data), the cluster can tolerate up to two simultaneous failures (quorum requires at least two copies). After replacing the failed node, the cluster returns to full health, so again can tolerate two failures. However, if the cluster originally had 4 nodes and one fails, only 3 remain; if another fails during re-replication, data could be at risk. But after re-replication, 4 nodes exist, so two failures are tolerable.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
2
Why this is correct
With RF3, two simultaneous failures are tolerable without data loss.
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1
Why it's wrong here
RF3 allows up to two failures, not one.
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0
Why it's wrong here
After re-replication, the cluster can still tolerate failures.
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3
Why it's wrong here
Three failures would exceed quorum requirements.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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