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Welcome to the MongoDb Datatypes MCQs Page

Dive deep into the fascinating world of MongoDb Datatypes with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of MongoDb Datatypes, a crucial aspect of MongoDB. In this section, you will encounter a diverse range of MCQs that cover various aspects of MongoDb Datatypes, 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 MongoDb Datatypes. 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 MongoDb Datatypes. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

MongoDb Datatypes MCQs | Page 2 of 4

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Q11.
_________ is a binary serialization format used to store documents and make remote procedure calls in MongoDB.

a.

BSON

b.

GridFS

c.

JSON

d.

None of the mentioned

Discuss
Answer: (a).BSON
Q12.
Point out the correct statement.

a.

ObjectIds are small, likely unique, fast to generate, and ordered

b.

ObjectIds are large, likely unique, and ordered

c.

ObjectIds values consists of 18-byte

d.

All of the mentioned

Discuss
Answer: (a).ObjectIds are small, likely unique, fast to generate, and ordered
Q13.
Which of the following data type is depreciated?

a.

Double

b.

String

c.

Object

d.

Undefined

Discuss
Answer: (d).Undefined
Q14.
Each data type has a corresponding number that can be used with the _______ operator to query documents by BSON type.

a.

$type

b.

$server

c.

$agent

d.

None of the mentioned

Discuss
Answer: (a).$type
Q15.
Point out the wrong statement.

a.

BSON Date is a 32-bit integer that represents the number of milliseconds

b.

The BSON timestamp type is for internal MongoDB use

c.

If you need to query the database for exact, mathematically valid matches, use Ambiguity Precision

d.

None of the mentioned

Discuss
Answer: (a).BSON Date is a 32-bit integer that represents the number of milliseconds
Q16.
There is _________ byte counter in BSON, starting with a random value.

a.

2

b.

3

c.

4

d.

None of the mentioned

Discuss
Answer: (b).3
Q17.
In the mongo shell, you can access the creation time of the ObjectId, using the ______ method.

a.

getTime()

b.

getTimestamp()

c.

Timestamp()

d.

None of the mentioned

Discuss
Answer: (b).getTimestamp()
Q18.
Object_Id is similar to _________ key in Relational Databases.

a.

primary

b.

secondary

c.

composite

d.

all of the mentioned

Discuss
Answer: (a).primary
Q19.
Which of the field is reserved for use as a primary key?

a.

_id

b.

_uid

c.

_uuid

d.

All of the mentioned

Discuss
Answer: (a)._id
Q20.
Point out the wrong statement.

a.

The field names cannot start with the dollar sign ($) character

b.

The field names cannot contain the dot (.) character

c.

The field names cannot contain the null character

d.

None of the mentioned

Discuss
Answer: (d).None of the mentioned
Page 2 of 4

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