MongoDB Data Modeling Techniques: Intermediate-Level Quiz

MongoDB Data Modeling Techniques Quiz

This quiz evaluates your understanding of key data modeling techniques in MongoDB. You’ll encounter questions on designing efficient schemas, embedding vs. referencing data, handling relationships, and optimizing storage for performance. Mastering these concepts is essential for building scalable, flexible applications using MongoDB. Good luck!

1 / 20

Embedded data model is used when you have _________ relationships between entities.

isa

inheritance

contains

all of the mentioned

2 / 20

Which of the following statements is correct?

The key consideration for the structure of your documents is the decision to embed or to use references

Reference schema is generally known as “denormalized” models

With MongoDB, you cannot embed related data in a single structure or document

None of the above

3 / 20

Which of the following statements is correct?

Data in MongoDB has a flexible schema

The key challenge in data modeling is balancing the needs of the application, the performance characteristics of the database engine, and the data retrieval patterns

In practice, the documents in a collection share a different structure

None of the mentioned

4 / 20

___________ data models allow applications to store related pieces of information in the same database record.

External

Reference

Embedded

None of the mentioned

5 / 20

For the __________ storage engine, if the document size exceeds the allocated space for that document, MongoDB relocates the document on disk.

MAPv1

MAPv2

MAPv3

MAPv4

6 / 20

Which of the following pattern is best for static trees that do not change?

Root

Child

Parent

None of the mentioned

7 / 20

Which of the following operations are atomic on document level?

findAndModify

remove

update

all of the mentioned

8 / 20

________ store the relationships between data by including links or references from one document to another.

External

References

Embedded

Capped

9 / 20

To add structures to your document to support keyword-based queries add the keywords as ______ in the array.

character

number

strings

none of the mentioned

10 / 20

____________ pattern requires additional steps of working with strings and regular expressions.

Array of Ancestors

Nested Sets

Materialized Paths

None of the mentioned

11 / 20

In MongoDB, write operations are atomic at the __________ level.

row

collection

document

all of the mentioned

12 / 20

The ________ References pattern stores each tree node in a document; in addition to the tree node, the document stores the id of the node’s parent.

Parent

Child

Root

None of the mentioned

13 / 20

The query to retrieve the parent of a node is slow and complex True or False?

True

False

14 / 20

Each index in MongoDB requires at least _________ of data space.

8KB

28KB

68KB

108KB

15 / 20

___________ strategy is used to explicitly avoid document growth.

allocation

deallocation

pre-allocation

none of the mentioned

16 / 20

Which of the following is related to document that provide support for synonym or related queries in the application layer?

Synonyms

Ranking

Stemming

None of the mentioned

17 / 20

Which of the following is related to the parsing of document for root?

Synonyms

Ranking

Stemming

None of the mentioned

18 / 20

Which of the following statements is not correct?

When designing data models, always consider the application usage of the data (i.e. queries, updates, and processing of the data) as well as the inherent structure of the data itself

There are two tools that allow applications to represent these relationships: references and embedded documents

The key decision in designing data models for MongoDB applications revolves around the structure of documents and how the application represents relationships between data

All of the above

19 / 20

________ indexes can include any field whose value is a string or an array of string elements.

char

text

string

none of the mentioned

20 / 20

Which of the following statements is correct?

An array with a small number of elements will incur greater indexing costs on insertion

An array with a large number of elements will incur greater indexing costs on insertion

An array with a large number of elements will incur smaller indexing costs on updates

None of the above

Your score is

The average score is 0%

MongoDB data modeling techniques focus on designing efficient and scalable data models for MongoDB.

It covers strategies for structuring data to optimize performance, including embedding vs. referencing documents, handling relationships, and ensuring data integrity.

This quiz is designed for those who have a basic understanding of MongoDB and want to deepen their knowledge of data modeling strategies.

All the best!