Question 1 : ________ returns a document only once for a geospatial query even if the document matches the query multiple times.
1. $uniqueDocs
2. $unique
3. $Docs
4. All of the mentioned
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Question 2 : Only the ______ geospatial index supports the $polygon operator
1. 1dsphere
2. 2d
3. 3d
4. None of the mentioned
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Question 3 : _________ specifies a polygon for a geospatial $geoWithin query on legacy coordinate pairs.
1. $rect
2. $polygon
3. $poly
4. All of the mentioned
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Question 4 : Applications can use _________ without having a geospatial index.
1. $center
2. $centre
3. $radii
4. $centersphere
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Question 5 : When used with the $box operator, _________ returns documents based on grid coordinates and does not query for GeoJSON shapes.
1. $geoNear
2. $geoWithin
3. $geoRear
4. All of the mentioned
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Question 6 : _________ defines a circle for a geospatial query that uses spherical geometry.
1. $center
2. $centre
3. $radii
4. $centersphere
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Question 7 : __________ query calculates distances using flat (planar) geometry.
1. $center
2. $centre
3. $radii
4. Sort
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Question 8 : ________ is the ability of a query to narrow results using the index.
1. Causality
2. Cardinality
3. Selectivity
4. All of the mentioned
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Question 9 : Indexes do not have to fit entirely into ______ in all cases.
1. ROM
2. RAM
3. Secondary Storage
4. None of the mentioned
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Question 10 : To avoid creating an index with a name that exceeds the index name length limit, you can pass the _____ option to the db.collection.createIndex() method.
1. name
2. lang
3. number
4. all of the mentioned
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