Q. To calculate geometry over an Earth-like sphere, store your location data on a spherical surface and use _____ index.

View solution

Q. ______ indexes can be constructed over arrays that hold both scalar values (e.g. strings, numbers) and nested documents.

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. Point out the wrong statement.

View solution

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

View solution

Q. Inclusion queries use the _________ operator in MongoDB.

View solution

Q. Point out the correct statement.

View solution

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

View solution

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.

View solution

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 ________

View solution

Q. $geoWithin replaces _______ in MongoDB 2.4.

View solution

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

View solution

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

View solution

Q. Point out the correct statement.

View solution

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

View solution

Q. Point out the wrong statement.

View solution

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

View solution