MongoDB Data Types: Beginner-Level Quiz

MongoDB Data Types Quiz

This quiz tests your understanding of the various data types supported by MongoDB, including strings, numbers, arrays, and embedded documents. A solid grasp of data types is essential for effective data storage and retrieval in MongoDB.

1 / 20

The GridFS index allows efficient retrieval of __________ using the files_id and n values.

Files

Chunks

BSON

JSON

2 / 20

There are _________ byte counter in BSON, starting with a random value.

3 / 20

__________ returns the JavaScript representation in the form of a string literal.

String()

toStringJava()

toString()

levlString()

4 / 20

The __________ JavaScript shell and the MongoDB language drivers translate between BSON and the language-specific document representation.

mongo

mongod

iscript

None of the above

5 / 20

Which of the following statements is not correct?

No MongoDB process will ever add duplicate fields to an existing user document

The maximum BSON document size is 16 megabytes

Some documents created by internal MongoDB processes may have duplicate fields

None of the above

6 / 20

BSON is a binary representation of ________ documents.

JSON

BSON

XML

JScript

7 / 20

Which of the following data type is depreciated?

Undefined

Double

String

Object

8 / 20

MongoDB documents are composed of field-and-value pairs and have the following structure?

field1: value1;

field1: value1

field1:; value1

All of the above

9 / 20

To store documents larger than the maximum size, MongoDB provides the _______ API.

Grid

GridFS

MMS

None of the above

10 / 20

Each data type has a corresponding number that can be used with the _______ operator to query documents by BSON type.

$agent

$type

$cash

$server

11 / 20

GridFS uses a _________ index on the chunks collection for the files_id and n fields.

unique

non unique

single

married

12 / 20

Which of the following statements is not correct?

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

Chunks in the context of GridFS is related to the use of the term chunks in the context of sharding

The default chunk size changed from 256k to 255k

None of the above

13 / 20

Which of the following statements is correct?

You cannot perform range queries on files stored through GridFS

Applications that handle temporal and spatial data often require capturing fractional units of currency

GridFS uses two collections to store files

All of the above

14 / 20

Object_Id is similar to _________ key in Relational Databases.

primary

secondary

composite

permanent

15 / 20

Which of the following statements is correct?

ObjectIds values consists of 18-byte

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

ObjectIds are large, likely unique, and ordered

MongoDB favours XML format more than JSON

16 / 20

Which of the following statements is not correct?

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

The BSON timestamp type is for internal MongoDB use

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

All of the above

17 / 20

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

JSON

GridFS

BSON

DSON

18 / 20

Which of the following statements is correct?

MongoDB stores documents on disk in the BSON serialization format

MongoDB stores documents on RAM in the JSON serialization format

MongoDB stores chunks on disk in the XML serialization format

None of the above

19 / 20

___________ is a specification for storing and retrieving files that exceed the BSON-document size limit of 16MB.

GridFS

FSpec

Grid

None of the above

20 / 20

To ensure functioning replication, do not store values that are of the _______ regular expression type in the _id field.

JScript

JSON

XML

None of the mentioned

Your score is

The average score is 0%

MongoDB Data Types covers the different data types it can store within its documents. This includes common types like strings, numbers, booleans, arrays, and objects, as well as more advanced types like ObjectId, Date, Binary Data, and Null.

Understanding these data types is crucial for properly designing schemas, querying data, and ensuring data integrity within MongoDB collections.

Best of luck!