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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 8 of 10

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Q71.
If a collection contains documents or embedded documents that are in different languages, include a field named _______ in the documents.

a.

operator

b.

lang

c.

language

d.

all of the mentioned

Discuss
Answer: (b).lang
Q72.
Point out the correct statement.

a.

After 2.4, you can terminate both background index builds and foreground index builds

b.

The specified language in the document overrides the default language for the text index

c.

The text index, like other indexes, should not fall within the index name length limit

d.

None of the mentioned

Discuss
Answer: (b).The specified language in the document overrides the default language for the text index
Q73.
To use a field with a name other than language, include the ________ option when creating the index.

a.

language_over

b.

language_override

c.

langoverride

d.

none of the mentioned

Discuss
Answer: (b).language_override
Q74.
The default name for the index consists of each indexed field name concatenated with _______

a.

_char

b.

_textc

c.

_text

d.

All of the mentioned

Discuss
Answer: (c)._text
Q75.
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.

a.

name

b.

lang

c.

number

d.

all of the mentioned

Discuss
Answer: (a).name
Q76.
The default weight is ____ for the indexed fields.

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (a).1
Q77.
For a ______ index, the weight of an indexed field denotes the significance of the field relative to the other indexed fields in terms of the score.

a.

unique

b.

natural

c.

text

d.

all of the mentioned

Discuss
Answer: (b).natural
Q78.
_________ operations that use an index often have better performance than those that do not use an index.

a.

Select

b.

Update

c.

Delete

d.

Sort

Discuss
Answer: (d).Sort
Q79.
Point out the wrong statement.

a.

The query scans the index and the collection

b.

An index supports a query when the index contains all the fields scanned by the query

c.

Creating indexes that support queries results in greatly increased query performance

d.

None of the mentioned

Discuss
Answer: (a).The query scans the index and the collection
Q80.
A prefix of a _______ index is a subset that consists of one or more keys at the start of the index key pattern.

a.

unique

b.

primary

c.

compound

d.

none of the mentioned

Discuss
Answer: (b).primary
Page 8 of 10

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