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Microsoft DP-420 Exam - Topic 5 Question 55 Discussion

You have an Azure subscription.You plan to create an Azure Cosmos DB for NoSQL database named DB1 that will store author and book data for authors that have each published up to ten books. Typical and frequent queries of the data will include:* All books written by an individual author* The synopsis of individual booksYou need to recommend a data model for DB1. The solution must meet the following requirements:* Support transactional updates of the author and book data.* Minimize read operation costs.What should you recommend?
D) Create a single container that stores author items and book items. Embed a list of each author's books in the
A) Create a single container that stores author items and book items, and then items that represent the relationship between the authors and their books.
B) Create three containers, one that stores author items, a second that stores book items, and a third that stores items that represent the relationship between the authors and their books.
C) Create two containers, one that stores author items and another that stores book items. Embed a list of each author's books in the corresponding author item.

Microsoft DP-420 Exam - Topic 5 Question 55 Discussion

Actual exam question for Microsoft's DP-420 exam
Question #: 55
Topic #: 5
[All DP-420 Questions]

You have an Azure subscription.

You plan to create an Azure Cosmos DB for NoSQL database named DB1 that will store author and book data for authors that have each published up to ten books. Typical and frequent queries of the data will include:

* All books written by an individual author

* The synopsis of individual books

You need to recommend a data model for DB1. The solution must meet the following requirements:

* Support transactional updates of the author and book data.

* Minimize read operation costs.

What should you recommend?

Show Suggested Answer Hide Answer
Suggested Answer: D

by Alison at Dec 10, 2024, 01:49 PM

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Kaycee
8 months ago
Embedding books in author items sounds smart, but what about updates?
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Yan
9 months ago
Wait, can Cosmos DB really handle that many transactions efficiently?
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Ressie
9 months ago
Three containers in option B seem excessive for this use case.
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Wilson
9 months ago
I disagree, option A would be more efficient for queries.
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Evangelina
9 months ago
I think option C is the best choice for embedding books with authors.
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Delbert
10 months ago
I recall that embedding data can help with performance, but I’m uncertain if option C or D is better for transactional updates. They both seem viable.
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Elin
10 months ago
I practiced a similar question where we had to balance transactional updates and read costs. I feel like option A might be too complex with multiple relationships.
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Ellsworth
10 months ago
I'm not entirely sure, but I think having a single container for both authors and books could simplify things. That might be option D?
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Essie
10 months ago
I remember discussing the importance of minimizing read operation costs, so maybe option C is a good choice since it embeds books within the author items.
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German
10 months ago
This is a tough one. I'm not sure if embedding the book list is the best approach - what if an author publishes a new book? That would require updating the author item, which could get expensive. Maybe option B with a separate container for the author-book relationship is a safer bet.
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Arlene
10 months ago
Okay, I think I've got it. We want to minimize read costs, so embedding the book list in the author item makes the most sense. That way we can quickly fetch all the books for a given author. Option C is the way to go here.
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Sommer
10 months ago
Hmm, I'm a bit confused on the relationship between authors and books. Do we need a separate container to store that, or can we embed it in the author or book items? I'll have to think through the tradeoffs carefully.
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Mira
10 months ago
This looks like a classic Cosmos DB data modeling question. I'd start by considering the requirements - we need to support transactional updates and minimize read costs. That points me towards option C or D.
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Jennifer
2 years ago
Option C is the way to go! Embedding the book list in the author item is like putting all your books on the same shelf - easy to find what you need.
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Ricarda
2 years ago
I think I'll go with option C for my Azure Cosmos DB data model. Thanks for the recommendation!
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Dino
2 years ago
It definitely simplifies the data structure and makes querying for author and book data more straightforward.
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Rachael
2 years ago
I agree, having two containers and embedding the book list in the author item makes sense for efficient queries.
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Hayley
2 years ago
Option C is the way to go! Embedding the book list in the author item is like putting all your books on the same shelf - easy to find what you need.
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Carin
2 years ago
I don't know, man. Option D sounds like a recipe for a hot mess. Why would you want to cram both author and book data into a single container? That's just asking for trouble.
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Danica
2 years ago
C) Create two containers, one that stores author items and another that stores book items. Embed a list of each author's books in the corresponding author item.
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Ryan
2 years ago
B) Create three containers, one that stores author items, a second that stores book items, and a third that stores items that represent the relationship between the authors and their books.
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Maryln
2 years ago
A) Create a single container that stores author items and book items, and then items that represent the relationship between the authors and their books.
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Rosendo
2 years ago
That's a good point, Lenita. Option C could definitely help minimize read operation costs.
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Lenita
2 years ago
I see your point, Gerry, but I think option C is the most efficient as it embeds the list of books directly in the author item.
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Velda
2 years ago
Definitely going with option C. It's a simple and efficient data model that meets all the requirements. Plus, it keeps the author and book data nicely organized.
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Kerry
2 years ago
Embedding the list of books in the author item does sound like a clean solution.
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Skye
2 years ago
I agree, option C seems like the best choice for this scenario.
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Gerry
2 years ago
I disagree, I believe option B is better as it separates the data into different containers for better organization.
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Altha
2 years ago
Option B seems overcomplicated for this use case. The extra container for the author-book relationship is unnecessary if we can just embed the book list in the author item.
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Rosendo
2 years ago
I think option A is the best choice because it keeps all the data in one container.
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Eric
2 years ago
I'd recommend option C. Embedding the book list in the author item makes sense for the given query patterns, and it also supports transactional updates.
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Cristal
2 years ago
Option C definitely seems like the most suitable choice for this database setup.
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Aleisha
2 years ago
Creating two containers seems like the best approach for this scenario.
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Samira
2 years ago
Embedding the book list in the author item will definitely help minimize read operation costs.
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Mariann
2 years ago
Option C seems like the most logical solution for this scenario.
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Fernanda
2 years ago
I agree, embedding the book list in the author item will minimize read operation costs.
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Sherly
2 years ago
I agree, embedding the book list in the author item will make the queries more efficient.
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Kerry
2 years ago
Option C is the way to go. It's efficient and meets all the requirements.
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Clemencia
2 years ago
I think option C is the best choice. It keeps the data organized and supports transactional updates.
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