hard20 pts · first answer countssystem-designcachingdistributed-systems

Adding a fifth cache node

You have 4 cache nodes and pick a node with hash(key) % N. You add a 5th node. Roughly what share of keys move to a different node with modulo hashing, compared with consistent hashing?

A.About 20% with modulo and about 80% with consistent hashingB.About 80% with modulo and about 20% with consistent hashingC.About 50% with both methodsD.No keys move with modulo, and all keys move with consistent hashing

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Adding a fifth cache node

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