A gaming company uses Azure Cosmos DB with multiple write regions. Their application is deployed in Azure Kubernetes Service (AKS) in Southeast Asia. They want to ensure that all operations are served by the Southeast Asia region to minimize latency, but they also want to maintain availability if that region fails. The application uses the .NET SDK and a singleton client. What should they configure?

Use a separate CosmosClient for each region with different ApplicationRegion settings.

Set PreferredLocations to ['Southeast Asia', 'East Asia'] and leave ApplicationRegion unset.

Set ApplicationRegion to 'East Asia' and PreferredLocations to ['East Asia', 'Southeast Asia'].

Set ApplicationRegion to 'Southeast Asia' and PreferredLocations to ['Southeast Asia', 'East Asia'].

A .NET application uses a singleton CosmosClient and occasionally receives 'CosmosException' with status code 429 (Too Many Requests). The team wants to handle these errors gracefully by retrying after a delay. What should they do?

Switch to gateway mode to avoid throttling.

Increase the request timeout to 2 minutes.

Catch the exception and create a new client before retrying.

Rely on the SDK's built-in retry policy for 429 errors.

A .NET application using the Cosmos DB SDK occasionally throws 'CosmosException' with status code 503 (Service Unavailable) during peak hours. The application uses a singleton client. The team wants to implement a resilient retry strategy. Which approach should be taken?

Increase the request timeout to 5 minutes.

Switch to gateway mode to avoid service unavailability.

Catch the exception and create a new CosmosClient instance before retrying.

Configure the SDK's built-in retry policy with a custom retry count and backoff interval.

Microsoft Certified:Azure Cosmos DB Developer Specialty

Domain 1Objective 4

Implement Client Connectivity Options in the Azure Cosmos DB SDK DP-420 Practice Questions (Page 3)

Part of the Design and implement data models domain, which makes up ~45% of our current practice bank. Microsoft does not publish an official question count, but from its 100-minute exam (~40–65 total, ~18–29 in this domain), expect 3–4 from this objective — we provide 32 practice questions to prepare you well beyond it. (estimate)

32questions here

7free pages

9concepts

Questions 11–15

11expert · hard
A gaming company uses Azure Cosmos DB with multiple write regions. Their application is deployed in Azure Kubernetes Service (AKS) in Southeast Asia. They want to ensure that all operations are served by the Southeast Asia region to minimize latency, but they also want to maintain availability if that region fails. The application uses the .NET SDK and a singleton client. What should they configure?
Select an answer first
12foundation · easy
In the .NET SDK for Azure Cosmos DB, which property of the CosmosClientOptions class is used to set the connectivity mode?
Select an answer first
13application · medium
A .NET application uses a singleton CosmosClient and occasionally receives 'CosmosException' with status code 429 (Too Many Requests). The team wants to handle these errors gracefully by retrying after a delay. What should they do?
Select an answer first
14application · medium
A .NET application using the Cosmos DB SDK occasionally throws 'CosmosException' with status code 503 (Service Unavailable) during peak hours. The application uses a singleton client. The team wants to implement a resilient retry strategy. Which approach should be taken?
Select an answer first
15foundation · easy
Which of the following is a typical default endpoint used by the Azure Cosmos DB emulator?
Select an answer first

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Implement Client Connectivity Options in the Azure Cosmos DB SDK DP-420 Practice Questions (Page 3)

Questions 11–15

In the .NET SDK for Azure Cosmos DB, which property of the CosmosClientOptions class is used to set the connectivity mode?

A .NET application uses a singleton CosmosClient and occasionally receives 'CosmosException' with status code 429 (Too Many Requests). The team wants to handle these errors gracefully by retrying after a delay. What should they do?

A .NET application using the Cosmos DB SDK occasionally throws 'CosmosException' with status code 503 (Service Unavailable) during peak hours. The application uses a singleton client. The team wants to implement a resilient retry strategy. Which approach should be taken?

Which of the following is a typical default endpoint used by the Azure Cosmos DB emulator?

Keep studying — Design and implement data models