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Hashed shard keys use a ________ index of a single field as the shard key to partition data across your sharded cluster.

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Hashed shard keys use a ________ index of a single field as the shard key to partition data across your sharded cluster.

(a) hashed

(b) unique

(c) multkikey

(d) all of the mentioned

I had been asked this question in an online interview.

My question is based upon Sharded Cluster Behavior in chapter Sharding Concepts, Mechanics and Sharded Cluster of MongoDB

1 Answer

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Best answer
Correct option is (a) hashed

Explanation: The field you choose as your hashed shard key should have a good cardinality, or large number of different values.

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