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  • Exam Name: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
  • Last Update: Mar 28, 2024
  • Questions and Answers: 121
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DP-420 Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Questions and Answers

Question # 6

You have a container named container1 in an Azure Cosmos DB Core (SQL) API account.

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

Which roles should you assign to User1?

A.

CosmosDB Operator only

B.

DocumentDB Account Contributor and Cosmos DB Built-in Data Contributor

C.

DocumentDB Account Contributor only

D.

Cosmos DB Built-in Data Contributor only

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Question # 7

You plan to create an Azure Cosmos DB account that will use the NoSQL API.

You need to create a grouping strategy for items that will be stored in the account. The solution must ensure that write and read operations on the items can be performed within the same transact!

What should you use to group the items?

A.

logical partitions

B.

physical partitions

C.

databases

D.

containers

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Question # 8

You have an Azure Cosmos DB Core (SQL) API account.

You configure the diagnostic settings to send all log information to a Log Analytics workspace.

You need to identify when the provisioned request units per second (RU/s) for resources within the account were modified.

You write the following query.

AzureDiagnostics

| where Category == "ControlPlaneRequests"

What should you include in the query?

A.

| where OperationName startswith "AccountUpdateStart"

B.

| where OperationName startswith "SqlContainersDelete"

C.

| where OperationName startswith "MongoCollectionsThroughputUpdate"

D.

| where OperationName startswith "SqlContainersThroughputUpdate"

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Question # 9

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

The following is a sample of a document in container1.

DP-420 question answer

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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Question # 10

You are building an application that will store data in an Azure Cosmos DB for NoSQL account. The account uses the session default consistency level. The account is used by five other applications. The account has a single read-write region and 10 additional read regions.

Approximately 20 percent of the items stored in the account are updated hourly.

Several users will access the new application from multiple devices.

You need to ensure that the users see the same item values consistently when they browse from the different devices. The solution must not affect the other applications.

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

NOTE: Each correct selection is worth one point.

A.

Use implicit session management when performing read requests.

B.

Provide a stored session token when performing read requests.

C.

Associate a session token to the user account.

D.

Set the default consistency level to eventual.

E.

Associate a session token to the device.

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Question # 11

You are designing a data model for an Azure Cosmos DB for NoSQL account.

What are the partition limits for request units per second (RU/s) and storage? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

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Question # 12

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 a container named container1 in an Azure Cosmos DB Core (SQL) API 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 that uses Azure Cosmos DB Core (SQL) API change feed as a trigger and Azure event hub as the output.

Does this meet the goal?

A.

Yes

B.

No

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Question # 13

You have a database named telemetry in an Azure Cosmos DB Core (SQL) API account that stores IoT data. The database contains two containers named readings and devices.

Documents in readings have the following structure.

id

deviceid

timestamp

ownerid

measures (array)

- type

- value

- metricid

Documents in devices have the following structure.

id

deviceid

owner

- ownerid

- emailaddress

- name

brand

model

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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Question # 14

You have an Azure Cosmos DB for NoSQL account named account that has the disablekeyBasedletadatwriteAccess property enabled.

You are developing an app named App1 that will be used by a use1 named DevUser1 to create containers in account1. DevUser1 has a non-privileged user account in the Azure AD tenant.

You need to ensure that DevUser1 can use App1 to create containers in account1.

What should you do? To answer, select the appropriate options in the answer area.

NOTE Each correct selection is worth one point.

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Question # 15

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 an Azure Monitor alert to trigger the function.

Does this meet the goal?

A.

Yes

B.

No

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Question # 16

You have an Azure Cosmos DB for NoSQL container named Contacts that is configured as shown in the following exhibit.

DP-420 question answer

Contacts contains the items shown in the following table.

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To Contacts, you plan to insert the items shown in the following table.

DP-420 question answer

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

NOTE: Each correct selection is worth one point.

DP-420 question answer

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Question # 17

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.)

DP-420 question answer

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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Question # 18

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?

A.

Yes

B.

No

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Question # 19

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.

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Question # 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?

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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Question # 21

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

What should you select?

A.

the timestamp

B.

the humidity

C.

the temperature

D.

the device ID

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Question # 22

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?

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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Question # 23

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.

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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Question # 24

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?

A.

Direct mode over HTTPS

B.

Gateway mode (using HTTPS)

C.

Direct mode over TCP

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Question # 25

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

What should you do to implement the conflict resolution policy.

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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Question # 26

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.

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