MongoDB Questions and Answers – Index Types – 3

This set of MongoDB Aptitude Test focuses on “Index Types – 3”.

1. Which of the following GeoJSON object is not supported in MongoDB?
a) Point
b) LineString
c) MultiPoint
d) None of the mentioned
View Answer

2. Point out the wrong statement.
a) MongoDB can query for locations contained entirely within a specified polygon
b) MongoDB require an index for inclusion queries; however, such indexes will improve query performance
c) Indexes on embedded fields allow you to use a “dot notation,” to introspect into embedded documents
d) None of the mentioned
View Answer

3. MongoDB supports spherical surface calculations on legacy coordinate pairs using a _______ index.
a) 2dsphere
b) 2d
c) geoHaystack
d) all of the mentioned
View Answer

4. Inclusion queries use the _________ operator in MongoDB.
a) $geokey
b) $geoin
c) $geoWithin
d) All of the mentioned
View Answer

5. Point out the correct statement.
a) For $geoSphere queries that specify GeoJSON geometries with areas greater than a single hemisphere, the use of the default CRS results in queries for the complementary geometries
b) When determining inclusion, MongoDB considers the border of a shape to be part of the shape, subject to the precision of floating point numbers
c) The custom MongoDB CRS uses a anti-clockwise winding order
d) None of the mentioned
View Answer

6. The $geoWithin operator uses the _______ operator to specify the GeoJSON object.
a) $sphere
b) $geoin
c) $geometry
d) All of the mentioned
View Answer

7. 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.
a) smaller
b) bigger
c) equal
d) all of the mentioned
View Answer

8. 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
View Answer

9. $geoWithin replaces _______ in MongoDB 2.4.
a) $withing
b) $gwithin
c) $within
d) All of the mentioned
View Answer

10. When used with the _____ operator, $geoWithin returns documents based on grid coordinates and does not query for GeoJSON shapes.
a) $box
b) $circle
c) $shape
d) All of the mentioned
View Answer

Sanfoundry Global Education & Learning Series – MongoDB.

Here’s the list of Best Books in MongoDB.