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

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

True

False

2 / 20

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

row

collection

document

all of the mentioned

3 / 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

4 / 20

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

char

text

string

none of the mentioned

5 / 20

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

External

References

Embedded

Capped

6 / 20

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

External

Reference

Embedded

None of the mentioned

7 / 20

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

Array of Ancestors

Nested Sets

Materialized Paths

None of the mentioned

8 / 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

9 / 20

The query to retrieve the parent of a node is fast and straightforward True or False?

True

False

10 / 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

11 / 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

12 / 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

13 / 20

A ____________ data model with embedded data combines all related data for a represented entity in a single document.

denormalized

normalized

relational

non relational

14 / 20

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

isa

inheritance

contains

all of the mentioned

15 / 20

______________ documents capture relationships between data by storing related data in a single document structure.

Capped

External

Internal

Embedded

16 / 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

17 / 20

With MongoDB 3.0.0, the default use of the Power of _________ Allocations minimizes the occurrences of re-allocations as well as allows for the effective reuse of the freed record space.

2 sized

3 sized

4 sized

5 sized

18 / 20

Which of the following operations are atomic on document level?

findAndModify

remove

update

all of the mentioned

19 / 20

You can query for a node in the children's field to find its parent node and siblings. True or False?

True

False

20 / 20

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

Root

Child

Parent

None of the mentioned

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!