DP-420 Exam Dumps - Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB

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Question # 9

You have an Azure Cosmos DB for NoSQL account that hosts a container named Customers. You need to add customers to Customers by using the Azure Cosmos DB Spark Connector. How should you complete the code? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

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Question # 10

You plan to create an Azure Cosmos DB Core (SQL) API account that will use customer-managed keys stored in Azure Key Vault.

You need to configure an access policy in Key Vault to allow Azure Cosmos DB access to the keys.

Which three permissions should you enable in the access policy? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point.

Wrap Key

Get

List

Update

Sign

Verify

Unwrap Key

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Question # 11

You are developing an application that will connect to an Azure Cosmos DB for NoSQL account. The account has a single readme region and one agonal read region. The regions are configured for automatic failover.

The account has the following connect strings. (Line numbers are included for reference only.)

For each of the following statements, select Yes if the statement is true. otherwise, select No.

NOTE: Each correct selection is worth one point.

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Answer:

Explanation:

If the primary write region fails, applications that write to the database must use a different connection string to continue to use the service. = NO

You do not need to use a different connection string to continue to use the service if the primary write region fails.Â This is because Azure Cosmos DB supports automatic failover, which means that it will automatically switch the primary write region to another region in case of a regional o utage 2 .Â The application doe s not need to change the connection string or specify the failover priority 3 .Â The connection string contains a list of all the regions associated with your account, and Azure Cos mos DB will route the requests to the appropriate region based on the availability and latency 1 .

The primary Read-Only SQL Connection String and the Secondary Read-Only SQL Connection String will connect to different regions from an application running in the East US Azure region = Yes

The primary read-only SQL connection string and the secondary read-only SQL connection string will connect to different regions from an application running in the East US Azure region. This is because the primary read-only SQL connection string contains the endpoint for the East US region, which is the same as the primary write region. The secondary read-only SQL connection string contains the endpoint for the West US region, which is the additional read region. Therefore, if an application running in the East US Azure region uses these connection strings, it will connect to different regions depending on which one it chooses.

Applications can choose from which region by setting the PreferredLocations property within their connection properties = Yes

Applications can choose from which region by setting the PreferredLocations property within their connection properties.Â This property allows you to specify a list of regions that you prefer to read from based on their proximity to your application 2 .Â Azure Cosmos DB will route the requests to the appropriate region based on the availability and latency 1 .Â You can also set the ApplicationRegion property to the region where your application is deployed, and Azure Cosmos DB will automatically populate the PreferredLocations property based on the geo-proximity from that location 1 .

Question # 12

You have an Azure Cosmos DB database that contains a container named container 1. The container1 container is configured with a maximum of 20,000 RU/s and currently contains 240 GB of data.

You need to estimate the costs of container1 based on the current usage.

How many RU/s will be charged?

240

4.000

20,000

24000

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Question # 13

You have a global ecommerce application that stores data in an Azure Cosmos OB for NoSQL account. The account is contoured for multi-region writes.

You need to create a stored procedure for a custom conflict resolution policy for a new container. In the event of a conflict caused by a deletion the deletion must always take priority.

Which parameter should you check m the stored procedure function?

conf1ictingItems

is Tombstone

existingitem

incoming1tem

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Question # 14

You plan to create an Azure Cosmos DB for NoSQL container that will contain items in the following format.

You need to define a query that will return the userid values of all the users who purchased an item that has a sku value of 11111. How should you complete the query? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

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Question # 15

You have an Azure Cosmos DB for NoSQL container.

All queries to the container use the Bounded Stateness consistency level.

You discover that when many queries are executed against the container, an HTTP 429 error is returned.

What are two ways to reduce the number of HTTP 429 errors? Each correct answer presents a complete solution.

NOTE Each correct selection is worth one point.

Use a query request option to change the consistency level to Strong

Increase the maximum throughput.

Add a post-trigger to the container.

Add a pre-trigger to the container.

Add query retry logic to the client application.

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Question # 16

You have a container named container! in an Azure Cosmos DB for NoSQL account.

You need to provide a user named User1 with the ability to insert items into container1 by using role-based access The solution must use the principle of least privilege.

Which roles should you assign to User1?

Cosmos DB Built-in Data Contributor only

Cosmos DB Operator only

DocumentDB Account Contribute only

DocumentDB Account Contributor and Cosmos DB Built-in Data Contributor

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