350-601 Compute Practice Question
A HyperFlex cluster uses RF2 and consists of 5 nodes. One node fails. Data is re-replicated to the remaining nodes. After re-replication, what is the largest number of additional node failures that can occur without data loss?
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
✓
1
With RF2 (two copies), the cluster can tolerate one failure. After a failure and re-replication, the cluster has 4 nodes. If one more node fails, data might still be available if the surviving node holds a copy. However, with RF2, a second failure could lead to data loss if both copies are lost. The maximum tolerable is one additional failure, because with two failures, some data may have only one copy left (if the second failure affects the only remaining copy). Actually, with RF2, you can tolerate one failure. After re-replication, same tolerance: one more failure. So answer is 1.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
0
Why it's wrong here
At least one more failure can be tolerated.
- ✗
2
Why it's wrong here
Two failures would cause data loss with RF2.
- ✓
1
Why this is correct
RF2 allows one failure; after re-replication, still one.
- ✗
3
Why it's wrong here
Too many; RF2 cannot tolerate three failures.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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