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DP-420 Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Questions and Answers

Questions 4

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 sett 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 container named conlainer1 in an Azure Cosmos DB for NoSQL account.

You need to make the contents of container1 available as reference data for an Azure Stream Analytics job.

Solution: You create an Azure function to copy data to another Azure Cosmos DB for NoSQL container.

Does this meet the goal?

Options:

A.

Yes

B.

No

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Questions 5

You have an Azure subscription that contains an Azure Cosmos DB for NoSQL database named DB1. The shared throughput provisioned for DB1 is 10,000 DTU/s. DB1 contains the containers shown in the following table.

DP-420 Question 5

You need to modify the throughput for the containers. The solution must meet the following requirements:

• The maximum throughput for Container1 must be 4,000 DTU/s.

• The throughput for Contained must be shared across the containers.

• Administrative effort must be minimized.

What should you do? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

DP-420 Question 5

Options:

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Questions 6

You configure a backup for an Azure Cosmos DB for NoSQL account as shown in the following exhibit.

DP-420 Question 6

Use the drop-down menus to select the answer choice that completes each statement based on the information presented in the graphic.

NOTE: Each correct selection is worth one point.

DP-420 Question 6

Options:

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Questions 7

You have a database named db1in an Azure Cosmos DB for NoSQL account named account 1.

You need to write JSON data to db1 by using Azure Stream Analytics. The solution must minimize costs.

Which should you do before you can use db1 as an output of Stream Analytics?

Options:

A.

in account, add a private endpoint.

B.

In db1, create containers that have a custom indexing policy and analytical store disabled.

C.

In account, enable a dedicated gateway.

D.

In db1, create containers that have an automatic indexing policy and analytical store enabled.

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Questions 8

You have an Azure Cosmos DB for NoSQL account.

The change feed is enabled on a container named invoice.

You create an Azure function that has a trigger on the change feed.

What is received by the Azure function?

Options:

A.

all the properties of the updated items

B.

only the partition key and the changed properties of the updated items

C.

all the properties of the original items and the updated items

D.

only the changed properties and the system-defined properties of the updated items

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Questions 9

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 an Azure Cosmos DB Core (SQL) API account named account 1 that uses autoscale throughput.

You need to run an Azure function when the normalized request units per second for a container in account1 exceeds a specific value.

Solution: You configure the function to have an Azure CosmosDB trigger.

Does this meet the goal?

Options:

A.

Yes

B.

No

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Questions 10

You have an Azure Cosmos DB database named databaset contains a container named container1. The container1 container store product data and has the following indexing policy.

DP-420 Question 10

Which path will be indexed?

Options:

A.

/product/brand

B.

/product/category

C.

/product/[ ]/category

D.

/product/brand/tailspin

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Questions 11

You have an Azure Cosmos DB container named owners. Each item in owners represents an owner and their pets. The following is a sample of the JSON

DP-420 Question 11

You are writing a query that will retrieve the average age of each pet owned by each owner, il the pet is older than two years.

How should you complete the query? To answer, drag the appropriate values to the correct targets. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes 01 scroll to view content.

NOTE: Each correct selection is worth one point.

DP-420 Question 11

Options:

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Questions 12

You need to implement a trigger in Azure Cosmos DB Core (SQL) API that will run before an item is inserted into a container.

Which two actions should you perform to ensure that the trigger runs? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point.

Options:

A.

Append pre to the name of the JavaScript function trigger.

B.

For each create request, set the access condition in RequestOptions.

C.

Register the trigger as a pre-trigger.

D.

For each create request, set the consistency level to session in RequestOptions.

E.

For each create request, set the trigger name in RequestOptions.

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Questions 13

You have an Azure Cosmos DB for NoSQL account1 that is configured for automatic failover. The account1 account has a single read-write region in West US and a and a read region in East US.

You run the following PowerShell command.

DP-420 Question 13

What is the effect of running the command?

Options:

A.

A manual failover will occur.

B.

The account will be unavailable to writes during the change.

C.

The provisioned throughput for account1 will increase.

D.

The account will be configured for multi-region writes.

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Questions 14

You configure multi-region writes for account1.

You need to ensure that App1 supports the new configuration for account1. The solution must meet the business requirements and the product catalog requirements.

What should you do?

Options:

A.

Set the default consistency level of accountl to bounded staleness.

B.

Create a private endpoint connection.

C.

Modify the connection policy of App1.

D.

Increase the number of request units per second (RU/s) allocated to the con-product and con-productVendor containers.

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Questions 15

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

DP-420 Question 15

You need to define a query that will return the ids of all accounts that have ever recorded a negative value for balance.

How should you complete the query? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

DP-420 Question 15

Options:

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Questions 16

You need to implement a solution to meet the product catalog requirements.

What should you do to implement the conflict resolution policy.

Options:

A.

Remove frequently changed field from the index policy of the con-product container.

B.

Disable indexing on all fields in the index policy of the con-product container.

C.

Set the default consistency level for account1 to eventual.

D.

Create a new container and migrate the product catalog data to the new container.

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Questions 17

You need to select the capacity mode and scale configuration for account2 to support the planned changes and meet the business requirements. What should you select? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

DP-420 Question 17

Options:

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Questions 18

You need to identify which connectivity mode to use when implementing App2. The solution must support the planned changes and meet the business requirements.

Which connectivity mode should you identify?

Options:

A.

Direct mode over HTTPS

B.

Gateway mode (using HTTPS)

C.

Direct mode over TCP

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Questions 19

You need to provide a solution for the Azure Functions notifications following updates to con-product. The solution must meet the business requirements and the product catalog requirements.

Which two actions should you perform? Each correct answer presents part of the solution.

NOTE:Each correct selection is worth one point.

Options:

A.

Configure the trigger for each function to use a different leaseCollectionPrefix

B.

Configure the trigger for each function to use the same leaseCollectionNair.e

C.

Configure the trigger for each function to use a different leaseCollectionName

D.

Configure the trigger for each function to use the same leaseCollectionPrefix

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Questions 20

You are troubleshooting the current issues caused by the application updates.

Which action can address the application updates issue without affecting the functionality of the application?

Options:

A.

Enable time to live for the con-product container.

B.

Set the default consistency level of account1 to strong.

C.

Set the default consistency level of account1 to bounded staleness.

D.

Add a custom indexing policy to the con-product container.

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Questions 21

You need to recommend indexes for con-product and con-productVendor. The solution must meet the product catalog requirements and the business requirements.

Which type of index should you recommend for each container? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

DP-420 Question 21

Options:

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Questions 22

You need to select the partition key for con-iot1. The solution must meet the IoT telemetry requirements.

What should you select?

Options:

A.

the timestamp

B.

the humidity

C.

the temperature

D.

the device ID

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Exam Code: DP-420
Exam Name: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
Last Update: Dec 27, 2025
Questions: 144

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