DP-420 Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Free Practice Exam Questions (2026 Updated)

You have an Azure Cosmos DB for NoSQL database named db1 that writes to multiple Azure regions. You need to test the performance of db1 in the secondary region. Which command should you run first?

You have an Azure Cosmos DB for NoSQL account named account1.

In account 1, you plan to create a container named container1 that will contain data continuously collected from sell-driving cars. The items in container! will be accessed mostly by using queries that target data collected from a specific car during a given day. Each car is identifiable by using a property named Vehicle-Identification-Number.

You need to identify a partition strategy for container1. The strategy must meet the following requirements:

• Maximize read and write performance.

• Minimize the costs of data reads and writes.

What should you identify?

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?

You have an Azure Cosmos DB for NoSQL account named account1 that supports an application named App1. App1 uses the consistent prefix consistency level.

You configure account1 to use a dedicated gateway and integrated cache.

You need to ensure that App1 can use the integrated cache.

Which two actions should you perform for APP1? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point.

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

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.

You have two Azure Cosmos DB for NoSQL containers named Contained and Contained. You plan to process the change feed for each container by using the following:

• Containers Pull model

• Container2: Change feed processor

You need to track the current processing point for each change feed.

What should you use for each container? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

You have a database in an Azure Cosmos DB for NoSQL account. The database contains a container named container1. The indexing mode container1 is set to none. You configure Azure Cognitive Search to extract data from container1 and make the data searchable. You discover that the Cognitive Search index is missing all the data from the Azure Cosmos DB index. What should you do to resolve the issue?

You are designing three apps named App1, App2, and App3. Each app will use a separate Azure Cosmos DB for NoSQL account. The apps have the following consistency requirements:

• App1: Reads must always return the most recent committed version of an item, where the commit occurred during the same session.

• App2: Reads must always return the most recent committed version of an item, even if the commit occurred during another session.

• App3: Write latency must be minimized and data staleness can be tolerated.

You need to recommend a default consistency level for each Azure Cosmos DB for NoSQL account. The solution must maximize concurrency.

What should you recommend for the account of each app? To answer, drag the appropriate consistency levels to the correct apps. Each consistency level may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

NOTE: Each correct selection is worth one point.

You have an Azure subscription that contains an Azure Cosmos DB for NoSQL account named account1 and a Log Analytics workspace named Workspace1. Workspace 1 stores the logs of account1.

You need to identify which operations used the most request units per second (RU/s) during the last 24 hours.

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

NOTE: Each correct selection is worth one point

You have an Azure Cosmos DB for NoSQL account.

You need to create an Azure Monitor query that lists recent modifications to the regional failover policy.

Which Azure Monitor table should you query?

You have an Azure Resource Manager (ARM) template that provisions Azure Cosmos DB accounts and databases. The accounts are deployed to a single Azure region. The databases have provisioned throughput configured. The name of the region, the type of database throughput, and the throughput value are defined as template parameters.

You need to modify some of the Azure Cosmos DB accounts and databases based on the following scenarios:

• Scenario 1: Add a read region and increase the database throughput.

• Scenario 2: Change the provisioned database throughput to autoscale.

The solution must minimize administrative effort and the duration of the modifications.

What should you use for each scenario? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

You provision Azure resources by using the following Azure Resource Manager (ARM) template.

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

NOTE: Each correct selection is worth one point.

You have an Azure Synapse Analytics workspace named workspace1 that contains a server less SQL pool.

You have an Azure Table Storage account that stores operational data.

You need to replace the Table storage account with Azure Cosmos DB for NoSQL The solution must meet the following requirements:

• Support Queries from the server less SQL pool.

• Only pay for analytical compute when running queries.

• Ensure that analytical processes do

NOTE: affect operational processes.

Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

You have an Azure Cosmos DB Core (SQL) API account used by an application named App1.

You open the Insights pane for the account and see the following chart.

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

NOTE: Each correct selection is worth one point.

You are developing an application that will use an Azure Cosmos DB Core (SQL) API account as a data source.

You need to create a report that displays the top five most ordered fruits as shown in the following table.

A collection that contains aggregated data already exists. The following is a sample document:

{

" name " : " apple " ,

" type " : [ " fruit " , " exotic " ],

" orders " : 10000

}

Which two queries can you use to retrieve data for the report? Each correct answer presents a complete solution.

NOTE: Each correct selection is worth one point.

A)

B)

C)

D)

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.

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.

You plan to implement an Azure Cosmos DB container that will store telemetry data from 1,000 loT devices. The data will be updated once every minute. An app will read the data once daily and generate aggregated reports that summarize the state of each device.

You need to configure a partition key for the container. The solution must meet the following requirements:

• Minimize the possibility of reaching the partition limits.

• Spread read and write operations evenly across the partitions.

• Minimize how long it takes to locate a specific set of telemetry values.

To what should you set the partition key?

Your company develops an application named App1 that uses the Azure Cosmos DB SDK and the Eventual consistency level.

App1 queries an Azure Cosmos DB for NoSQL account named account!

You need to identify which consistency level to assign to App1 to meet the following requirements:

• Maximize the throughput of the queries generated by App1 without increasing the number of request units currently used by the queries.

• Provide the highest consistency guarantees.

Which consistency level should you identify?

You have an Azure subscription that contains an Azure Cosmos DB for NoSQL account named account1.

For account 1, you plan to implement an integrated gateway that will use the D4s SKU.

You need to optimize integrated gateway performance for point reads from account1. The solution must meet the following requirements:

• For new point reads, maximize how long returned items remain in the integrated cache.

• For new and repeating point reads, maximize the cost benefits of the integrated cache.

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

NOTE: Each correct selection is worth one point.