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Index keys that are of the _______ type are more efficiently stored in the index.

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Index keys that are of the _______ type are more efficiently stored in the index.

(a) Materialized Paths

(b) BinData

(c) String

(d) None of the mentioned

I got this question at a job interview.

I'd like to ask this question from MongoDB documents topic in division GridFS, BSON Datatype and Administration Concepts of MongoDB

1 Answer

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Best answer
The correct choice is (b) BinData

The best explanation: Most MongoDB driver clients will include the _id field and generate an ObjectId before sending the insert operation to MongoDB.

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