Q. The coordinate reference system for GeoJSON uses the _____ datum.

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Q. Which of the following is used to calculate distances on a Euclidean plane?

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Q. Queries on ________ objects always calculate on a sphere.

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Q. Which of the following GeoJSON object is not supported in MongoDB?

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Q. Point out the wrong statement.

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Q. MongoDB supports spherical surface calculations on legacy coordinate pairs using a _______ index.

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Q. Inclusion queries use the _________ operator in MongoDB.

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Q. Point out the correct statement.

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Q. The $geoWithin operator uses the _______ operator to specify the GeoJSON object.

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Q. If the specified polygon is _______ than a single hemisphere, the behavior of $geoWithin with the MongoDB CRS is the same as with the default CRS.

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Q. 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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Q. $geoWithin replaces _______ in MongoDB 2.4.

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Q. When used with the _____ operator, $geoWithin returns documents based on grid coordinates and does not query for GeoJSON shapes.

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Q. ________ indexes expire documents after the specified number of seconds has passed since the indexed field value.

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Q. Point out the correct statement.

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Q. The background task that removes expired documents runs every ________ seconds.

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Q. Point out the wrong statement.

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Q. On replica sets, the TTL background thread only deletes documents on _____________

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Q. You can combine the ________ constraint with the sparse index to filter these null values from the unique index and avoid the error.

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Q. You may not specify a unique constraint on a ______ index.

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