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

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

Timestamp()

getTime()

getTimestamp()

None of the above

2 / 20

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

JSON

GridFS

BSON

DSON

3 / 20

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

String()

toStringJava()

toString()

levlString()

4 / 20

By default GridFS limits chunk size to ______ k.

255

225

257

256

5 / 20

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

unique

non unique

single

married

6 / 20

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

Server

Agent

Client

None of the above

7 / 20

MongoDB represents queries as ___________ objects.

JSON

BSON

GSON

DSON

8 / 20

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

Files

Chunks

BSON

JSON

9 / 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

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

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

12 / 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

13 / 20

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

14 / 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

15 / 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

16 / 20

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

Files

Chunks

BSON

JSON

17 / 20

The ___ field contains the sequence number of the chunk.

field

array

18 / 20

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

_uuid

_uid

_id

All of the mentioned

19 / 20

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

_id

Ob_id

None of the above

20 / 20

Which of the following data type is depreciated?

Undefined

Double

String

Object

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!