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You plan to create an Azure Cosmos DB for NoSQL database named db1 that will contain two containers. One of the containers will contain blog posts, and the other will contain users. Each item in the blog post container will include:

• A single blog post

• The top 10 comments associated to the blog post

• The names of the users who created the blog post and the associated comments

You need to automatically update the usernames in the blog post container whenever a username in the user container changes.

What should you implement for the user container?

Note: This question is part of a series of questions that present the same scenario. Each question in

the series contains a unique solution that might meet the stated goals. Some question sets might have

more than one correct solution, while others might not have a correct solution.

After you answer a question in this section, you will NOT be able to return to it. As a result, these

questions will not appear in the review screen.

You have a database in an Azure Cosmos DB for NoSQL account that is configured for multi-region writes.

You need to use the Azure Cosmos DB SDK to implement the conflict resolution policy for a container. The

solution must ensure that any conflicts are sent to the conflicts feed.

Solution: You set ConflictResolutionMode to Custom. You set ResolutionProcedure to a custom

stored procedure. You configure the custom stored procedure to use the isTombstone parameter to resolve

conflicts.

Does this meet the goal?

You have an Azure Cosmos DB Core (SQL) API account that is used by 10 web apps. You need to analyze the data stored in the account by using Apache Spark to create machine learning models. The solution must NOT affect the performance of the web apps. Which two actions should you perform? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.

One of the team members has recently joined the team and wants to manually adjust the time for which the items will remain in the cache.  He asks you for help about which property from the ItemRequestOptions class should he configure. What would you suggest?

Each transaction in a Cosmos Database provides ACID property guarantees. Which of these ACID properties ensures that the data is always in a valid state across transactions?