Exam DP-420 topic 4 question 7 discussion

Actual exam question from Microsoft's DP-420

Question #: 7
Topic #: 4

You have a container named container1 in an Azure Cosmos DB Core (SQL) API account named account1 that is set to the session default consistency level. The average size of an item in contained is 20 KB.
You have an application named App1 that uses the Azure Cosmos DB SDK and performs a point read on the same set of items in container1 every minute.
You need to minimize the consumption of the request units (RUs) associated to the reads by App1.
What should you do?

A. In App1, modify the connection policy settings
B. In App1, change the consistency level of read requests to consistent prefix
C. In account1, provision a dedicated gateway and integrated cache
D. In account1, change the default consistency level to bounded staleness

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Suggested Answer: C 🗳️

by [deleted] at April 27, 2023, 3:03 p.m.

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Garyn

9 months, 3 weeks ago

The correct Answer is C. The integrated cache in Azure Cosmos DB can be particularly useful for point reads, where frequently accessed data can be served from the cache, significantly reducing RU consumption for those specific operations. This can lead to cost savings, especially if your application performs a high volume of point reads on the same data. When dealing with point reads, the cache can be highly effective in reducing the number of RUs needed for frequently accessed items, as long as those items are cached and served as cache hits.

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