adplus-dvertising

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.

frame-decoration

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 3 of 10

Explore more Topics under MongoDB

Q21.
Before version _______ capped collections did not have an _id field.

a.

2.1

b.

2.4

c.

3.0

d.

2.2

Discuss
Answer: (d).2.2
Q22.
Point out the wrong statement.

a.

You can create indexes on fields within embedded documents

b.

Indexes on embedded fields are similar to indexes on embedded documents

c.

Indexes on embedded fields allow you to use a “dot notation,” to introspect into embedded documents

d.

None of the mentioned

Discuss
Answer: (c).Indexes on embedded fields allow you to use a “dot notation,” to introspect into embedded documents
Q23.
For a _____ multikey index, each indexed document can have at most one indexed field whose value is an array.

a.

Hashed

b.

Unique

c.

Multikey

d.

compound

Discuss
Answer: (d).compound
Q24.
Which of the following indexes cannot be multikey?

a.

Hashed

b.

Unique

c.

Multikey

d.

compound

Discuss
Answer: (a).Hashed
Q25.
Point out the wrong statement.

a.

You may not create compound indexes that have hashed index fields

b.

The order of the fields in a compound index is very important

c.

You will receive a warning if you attempt to create a compound index that includes a hashed index

d.

None of the mentioned

Discuss
Answer: (c).You will receive a warning if you attempt to create a compound index that includes a hashed index
Q26.
To calculate geometry over an Earth-like sphere, store your location data on a spherical surface and use _____ index.

a.

2dsphere

b.

2d

c.

geoHaystack

d.

all of the mentioned

Discuss
Answer: (a).2dsphere
Q27.
______ indexes can be constructed over arrays that hold both scalar values (e.g. strings, numbers) and nested documents.

a.

Hashed

b.

Unique

c.

Multikey

d.

Compound

Discuss
Answer: (c).Multikey
Q28.
The coordinate reference system for GeoJSON uses the _____ datum.

a.

WGS88

b.

WGS84

c.

JGS88

d.

None of the mentioned

Discuss
Answer: (b).WGS84
Q29.
Which of the following is used to calculate distances on a Euclidean plane?

a.

2dsph

b.

2d

c.

geoHaystack

d.

all of the mentioned

Discuss
Answer: (b).2d
Q30.
Queries on ________ objects always calculate on a sphere.

a.

GeoBSON

b.

GeoJSON

c.

geoJSONB

d.

All of the mentioned

Discuss
Answer: (b).GeoJSON
Page 3 of 10

Suggested Topics

Are you eager to expand your knowledge beyond MongoDB? We've curated a selection of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!

Cyber Security

Understand the fundamentals of safeguarding digital assets with our Cyber Security...

Microprocessor

Understand the heart of your computer with our Microprocessor MCQs. Topics include...

Java Programming

Level up your coding skills with our Java Programming MCQs. From object-oriented...

Wireless and Mobile Communications

Get to grips with modern communication technologies with our Wireless and Mobile...

Discrete Mathematics

Refine your mathematical skills essential for computer science with our Discrete...

PHP

Venture into server-side scripting with our PHP MCQs. Cover everything from syntax...

Hadoop

Dive into the world of big data with our Hadoop MCQs. Cover key concepts including...

Web Technologies

Master the building blocks of the web with our Web Technologies MCQs. From HTML and...

C Programming

Master one of the most widely used programming languages with our C Programming MCQs....