Question 21 : If a collection contains documents or embedded documents that are in different languages, include a field named _______ in the documents.
1. operator
2. lang
3. language
4. all of the mentioned
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Question 22 : The default language for the indexed data is ________
1. chinese
2. english
3. spanish
4. none of the mentioned
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Question 23 : When creating a text index on multiple fields, you can specify the individual fields or you can use wildcard specifier ______
1. ($*)
2. (**$**)
3. ($**)
4. None of the mentioned
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Question 24 : ________ index must exist on a field holding coordinates before using any of the geospatial query operators.
1. Unique
2. Geospatial
3. Temporal
4. All of the mentioned
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Question 25 : The _________ operator specifies a circle for a $geoWithin query.
1. $within
2. $gwithin
3. $center
4. All of the mentioned
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Question 26 : __________ specifies a minimum distance to limit the results of $near and $nearSphere queries.
1. $center
2. $maxDistance
3. $minDistance
4. All of the mentioned
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Question 27 : _________ returns geospatial objects in proximity to a point on a sphere. Requires a geospatial index.
1. $near
2. $nearsphere
3. $geoIntersect
4. None of the mentioned
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Question 28 : _________ specifies a geometry in GeoJSON format to geospatial query operators.
1. $sphere
2. $geoin
3. $geometry
4. All of the mentioned
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Question 29 : _______ returns geospatial objects in proximity to a point.
1. $near
2. $nearsphere
3. $geoIntersect
4. None of the mentioned
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Question 30 : ___________ selects geometries that intersect with a GeoJSON geometry.
1. $near
2. $nearsphere
3. $geoIntersect
4. None of the mentioned
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