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Welcome to the Indexes In MongoDB MCQs Page

Dive deep into the fascinating world of Indexes In MongoDB with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Indexes In MongoDB, a crucial aspect of MongoDB. In this section, you will encounter a diverse range of MCQs that cover various aspects of Indexes In MongoDB, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within MongoDB.

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Check out the MCQs below to embark on an enriching journey through Indexes In MongoDB. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of MongoDB.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Indexes In MongoDB. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Indexes In MongoDB MCQs | Page 4 of 10

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Q31.
Which of the following GeoJSON object is not supported in MongoDB?

a.

Point

b.

LineString

c.

MultiPoint

d.

None of the mentioned

Discuss
Answer: (d).None of the mentioned
Q32.
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

Discuss
Answer: (b).MongoDB require an index for inclusion queries; however, such indexes will improve query performance
Q33.
MongoDB supports spherical surface calculations on legacy coordinate pairs using a _______ index.

a.

2dsphere

b.

2d

c.

geoHaystack

d.

all of the mentioned

Discuss
Answer: (a).2dsphere
Q34.
Inclusion queries use the _________ operator in MongoDB.

a.

$geokey

b.

$geoin

c.

$geoWithin

d.

All of the mentioned

Discuss
Answer: (c).$geoWithin
Q35.
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

Discuss
Answer: (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
Q36.
The $geoWithin operator uses the _______ operator to specify the GeoJSON object.

a.

$sphere

b.

$geoin

c.

$geometry

d.

All of the mentioned

Discuss
Answer: (c).$geometry
Q37.
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

Discuss
Answer: (a).smaller
Q38.
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

Discuss
Answer: (a).CRS
Q39.
$geoWithin replaces _______ in MongoDB 2.4.

a.

$withing

b.

$gwithin

c.

$within

d.

All of the mentioned

Discuss
Answer: (c).$within
Q40.
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

Discuss
Answer: (a).$box
Page 4 of 10

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