Design and Implement Multi-Region Writes DP-420 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A company is planning to enable multi-region writes on an existing Azure Cosmos DB for NoSQL account. The application uses the .NET SDK. The development team wants to ensure that conflicts are handled consistently across all regions. What should you do before enabling multi-region writes?

   • AConfigure a conflict resolution policy on each container that meets the application's requirements.
   • BCreate a stored procedure in each region to handle conflicts.
   • CEnable the multi-region writes feature in the Azure portal and then configure the SDK to use the nearest region.
   • DSet the consistency level to Strong to avoid conflicts.
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2. 12foundation · easy

   Which consistency level is NOT supported when multi-region writes are enabled in Azure Cosmos DB?

   • AEventual
   • BSession
   • CBounded staleness
   • DStrong
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4. 13foundation · easy

   What is a primary benefit of enabling multi-region writes in Azure Cosmos DB?

   • AIt eliminates the need for any conflict resolution because all writes are automatically merged.
   • BIt guarantees that all write operations are committed synchronously across all regions before returning success.
   • CIt automatically converts the consistency level to Strong for all read operations.
   • DIt allows write operations to be served from any region where the account is enabled, improving write availability and reducing write latency.
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5. 14foundation · easy

   When would you consider enabling multi-region writes for an Azure Cosmos DB account?

   • AWhen the application has a single global user base that only reads data.
   • BWhen the application requires high write availability and low write latency across multiple geographic regions.
   • CWhen the application uses the Strong consistency level and needs to ensure all writes are immediately visible everywhere.
   • DWhen the application needs to comply with data residency requirements that mandate data stay in a single region.
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6. 15application · medium

   A social media company is deploying a new feature that allows users to post messages. The application will be used globally. The company wants to minimize the latency of write operations for users in different regions and ensure that the service remains available for writes even if a regional outage occurs. Which Azure Cosmos DB configuration should you recommend?

   • ADeploy a separate Cosmos DB account in each region and synchronize data using the change feed.
   • BUse a single write region and configure the SDK to route reads to the nearest region.
   • CEnable multi-region writes on a single Cosmos DB account with regions in the user's geographic areas.
   • DUse the Azure Cosmos DB gateway to route writes to the region with the lowest latency.
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