You need to archive old records from an Azure Cosmos DB container to a cheaper storage solution. You plan to use the change feed to detect documents that have been marked for archiving. What is a common approach to trigger the archive process?

Use a pre-trigger to archive the document before insertion

Use TTL to automatically move data to archival storage

Update the document with a flag such as 'archived' and use the change feed to detect that update

Use a stored procedure to copy data to archival storage

When using the change feed to persist aggregated data, which operation is typically performed in response to a change feed event?

Create a new aggregation document for every change

Delete the aggregation document

Upsert an aggregation document with the updated value

You need to scale out your change feed processing to handle a higher volume of changes. What is the primary factor that determines the maximum number of change feed processor instances you can run?

Number of physical partitions in the container

Number of containers in the database

Number of logical partitions in the container

Request Units (RU/s) provisioned on the container

You are designing a solution to denormalize data in Azure Cosmos DB. You want to maintain a materialized view that includes customer details alongside order data. Which pattern uses the change feed to achieve this?

Using the change feed to update a separate container that stores denormalized documents

Using stored procedures to update the same document

Using a trigger to update the same document

Microsoft Certified:Azure Cosmos DB Developer Specialty

Domain 4Objective 2

Design and Implement Change Feeds for Azure Cosmos DB for NoSQL DP-420 Practice Questions (Page 2)

Part of the Optimize an Azure Cosmos DB solution domain, which makes up ~13% of our current practice bank. Microsoft does not publish an official question count, but from its 100-minute exam (~40–65 total, ~5–8 in this domain), expect 2–3 from this objective — we provide 14 practice questions to prepare you well beyond it. (estimate)

14questions here

3free pages

7concepts

Questions 6–10

6foundation · easy
In the Azure Cosmos DB .NET SDK, which method on a Container object is used to start the change feed processor?
Select an answer first
7foundation · easy
You need to archive old records from an Azure Cosmos DB container to a cheaper storage solution. You plan to use the change feed to detect documents that have been marked for archiving. What is a common approach to trigger the archive process?
Select an answer first
8foundation · easy
When using the change feed to persist aggregated data, which operation is typically performed in response to a change feed event?
Select an answer first
9foundation · easy
You need to scale out your change feed processing to handle a higher volume of changes. What is the primary factor that determines the maximum number of change feed processor instances you can run?
Select an answer first
10foundation · easy
You are designing a solution to denormalize data in Azure Cosmos DB. You want to maintain a materialized view that includes customer details alongside order data. Which pattern uses the change feed to achieve this?
Select an answer first

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