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Point out the correct statement.

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in MongoDB by (131k points)
Point out the correct statement.

(a) Both 2dsphere and 2d geospatial indexes support $geoWithin

(b) $geoWithin does not require a geospatial index

(c) The $geoWithin operator does not return sorted results

(d) None of the mentioned

This question was posed to me during an interview.

My question comes from Geospatial Index topic in chapter Index/Indexing Concepts of MongoDB

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The correct answer is (b) $geoWithin does not require a geospatial index

For explanation I would say: However, a geospatial index will improve query performance.

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