A Raft cluster has 5 nodes. How many can fail while it still commits writes?

Options

• ✗ 1
• ✓ 2 Correct
• ✗ 3
• ✗ 4

Why

A write commits once a majority stores it: 3 of 5. With 2 nodes down, the remaining 3 are still a majority. In general, 2f + 1 nodes tolerate f failures.

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