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

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

2 / 20

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

Grid

GridFS

MMS

None of the above

3 / 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

4 / 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

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

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

7 / 20

In the mongo shell, you can access the creation time of the ObjectId, using the ______ method.

Timestamp()

getTime()

getTimestamp()

None of the above

8 / 20

Which of the following data type is depreciated?

Undefined

Double

String

Object

9 / 20

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

unique

non unique

single

married

10 / 20

BSON is a binary representation of ________ documents.

JSON

BSON

XML

JScript

11 / 20

Which of the field is reserved for use as a primary key?

_uuid

_uid

_id

All of the mentioned

12 / 20

When you query a GridFS store for a file, the _______ will reassemble the chunks as needed.

Server

Agent

Client

None of the above

13 / 20

Each document in the __________ collection represents a distinct chunk of a file as represented in the GridFS store.

Files

Chunks

BSON

JSON

14 / 20

Which of the following statements is not correct?

The field names cannot contain the null character

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

The field names cannot contain the dot (.) character

None of the above

15 / 20

The ______ field is always the first field in the document.

_id

Ob_id

None of the above

16 / 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

17 / 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

18 / 20

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

Files

Chunks

BSON

JSON

19 / 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

20 / 20

By default GridFS limits chunk size to ______ k.

255

225

257

256

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!