What is the minimum information required to create a CosmosClient instance in the Azure Cosmos DB .NET SDK?

Account endpoint and primary key

Database name and container name

What is the primary purpose of the Azure Cosmos DB emulator?

To provide a graphical interface for managing Azure Cosmos DB accounts in the cloud

To replace the need for a production database by storing data permanently on the local machine

To automatically migrate data from on-premises databases to Azure Cosmos DB

To provide a local environment for developing and testing applications without incurring Azure costs

A Python application needs to connect to Azure Cosmos DB. The team wants to use the SDK's recommended approach for managing the client lifecycle. Which pattern should they use?

Create a CosmosClient instance at module level and reuse it.

Use a global variable that is reassigned on each request.

Create a new CosmosClient for each database operation.

Create a new CosmosClient for each thread.

A global logistics company uses Azure Cosmos DB with multiple write regions. Their application is deployed in Azure Kubernetes Service (AKS) in the West Europe region. They want to ensure that all read and write operations from the application are served by the nearest region to reduce latency. The application uses the .NET SDK and already has a singleton client. What should they configure?

Set the PreferredLocations list to include all regions in the account.

Set the ApplicationRegion to 'West Europe' on the CosmosClientBuilder.

Configure the connection string to point to the West Europe endpoint.

Use the CosmosClient constructor without specifying region preferences.

Which of the following best describes the singleton pattern for the CosmosClient in a .NET application?

Using a new CosmosClient in every method and relying on garbage collection to clean up

Using a static property that lazily creates and reuses a single CosmosClient instance

Creating a new CosmosClient instance for each database operation

Creating a CosmosClient in a using statement and disposing it after each request

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 6)

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 26–30

26foundation · easy
What is the minimum information required to create a CosmosClient instance in the Azure Cosmos DB .NET SDK?
Select an answer first
27foundation · easy
What is the primary purpose of the Azure Cosmos DB emulator?
Select an answer first
28application · medium
A Python application needs to connect to Azure Cosmos DB. The team wants to use the SDK's recommended approach for managing the client lifecycle. Which pattern should they use?
Select an answer first
29application · medium
A global logistics company uses Azure Cosmos DB with multiple write regions. Their application is deployed in Azure Kubernetes Service (AKS) in the West Europe region. They want to ensure that all read and write operations from the application are served by the nearest region to reduce latency. The application uses the .NET SDK and already has a singleton client. What should they configure?
Select an answer first
30foundation · easy
Which of the following best describes the singleton pattern for the CosmosClient in a .NET application?
Select an answer first

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