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Exam PL-400 topic 2 question 4 discussion

Actual exam question from Microsoft's PL-400
Question #: 4
Topic #: 2
[All PL-400 Questions]

DRAG DROP -
An international organization has a series of client-server applications that manage red light cameras and traffic violations across a wide geographic region. The daily volume of traffic violations is very high and growing.
You plan to use Microsoft Power Platform apps to manage the following types of data:
✑ Existing vehicle licensing data must be imported into Microsoft Dataverse and easily queried.
✑ Red light camera images must be stored in a repository for later analysis.
✑ Information about traffic violations must be stored and related to vehicle details.
You need to select data storage mechanisms for the new apps.
Which data storage mechanisms should you use? To answer, drag the appropriate data storage mechanisms to the correct data types. Each storage mechanism may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
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vsharma041990
Highly Voted 3 years, 1 month ago
It should be Entity, Blob Entity
upvoted 84 times
DeinosK
3 years, 1 month ago
https://docs.microsoft.com/en-us/connectors/documentdb/ It says Power Apps --> Not available
upvoted 8 times
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d365gkv
Highly Voted 3 years ago
Entity(Since it says " Existing vehicle licensing data must be imported into Common Data Service and easily queried.") Azure Storage Blob - Designed to handle such objects Entity - Since it says "Information about traffic violations must be stored and related to vehicle details" Cosmos DB cannot be used because its noSQL
upvoted 27 times
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itmaxuser
Most Recent 3 months, 2 weeks ago
1-Vehicle licensing data: Entity: Since vehicle licensing data will be imported into Dataverse and queried, it should be stored in a Dataverse entity, which is the preferred method for structured relational data within the Power Platform. 2-Red light camera photos: Azure Storage Blob: Images like red light camera photos should be stored in Azure Blob Storage because it is optimized for storing large, unstructured data like images, videos, or logs. 3-Information about traffic violations: Entity: Traffic violation information, which needs to be related to vehicle details, should be stored in a Dataverse entity. Entities are designed to store structured data and can be easily related to other entities. Correct matches: Vehicle licensing data → Entity Red light camera photos → Azure Storage Blob Information about traffic violations → Entity
upvoted 1 times
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At09
10 months ago
Entity Blob Entity
upvoted 2 times
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NyarukouSAMA
10 months, 1 week ago
Well, looks like the answer for the 3rd option indeed can be Azure Cosmos DB. Because you can create a virtual entity using the Cosom DB data provider (https://learn.microsoft.com/en-us/power-apps/maker/data-platform/virtual-entity-documentdb-provider-requirements). So, based on clarification, that traffic volume is high and quickly grows, Cosmos DB looks like a good solution for this - because this is a NoSQL document DB and traffic info we can represent as a document. Based on the fact we should make the relationship, a virtual entity using the Cosmos DB data provider fits that condition, I believe, there should be Azure Cosmos DB.
upvoted 6 times
wooderd
8 months, 2 weeks ago
at least as of nov. 2023, this features is till in preview, so I don't think the exam would base a correct answer on a feature that is not fully released, thus the third answer should be Entity
upvoted 3 times
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zewzew
10 months, 4 weeks ago
Because Power apps can not retrieve more than 500 records(2000 max with configuration), I think with high volume of traffic violation, it can not correctly related with vehicle details.
upvoted 1 times
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jkaur
11 months, 3 weeks ago
Entity, Azure Storage Blob, Entity
upvoted 3 times
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emt2021
1 year, 2 months ago
the answers are correct. "The daily volume of traffic violations is very high and growing." Azure Cosmos DB's design lets you scale to massive request volumes in the order of trillions of requests per day. https://learn.microsoft.com/en-us/azure/cosmos-db/use-cases
upvoted 6 times
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alevalli9
1 year, 4 months ago
I agree with people saying: Entity Blob Storage Entity
upvoted 3 times
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Muzera
2 years ago
It should be Entity, Blob Entity
upvoted 4 times
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ClairFraser
2 years, 2 months ago
Entity, Blob, Entity - since indeed there's a requirement for relation between the vehicle licenses and violations.
upvoted 2 times
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Vile_R
2 years, 4 months ago
The question is tricky, since it says must to be imported, that means it is in another source, so probably the answer is correct. Cosmos DB Azure Blob Entity
upvoted 2 times
Harminder
1 year, 11 months ago
the question ask the data storage option for new app so Cosmos DB can not be there
upvoted 1 times
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sallo
3 years, 1 month ago
Correct Answer is Entity, Azure Storage Blob, Entity. Azure Cosmos DB it's a noSQL database, and it's not the best choice for images.
upvoted 11 times
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