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To query with a single-ringed GeoJSON polygon whose area is greater than a single hemisphere, the $geometry expression must specify the custom MongoDB ________

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To query with a single-ringed GeoJSON polygon whose area is greater than a single hemisphere, the $geometry expression must specify the custom MongoDB ________

(a) CRS

(b) CDS

(c) CLS

(d) None of the mentioned

This question was addressed to me in unit test.

The above asked question is from Index Types in division Index/Indexing Concepts of MongoDB

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Correct option is (a) CRS

For explanation: CRS stands for coordinate reference system.

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