Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DBは専門性の高い試験として知られ、十分な準備なしに臨むには不安が残ります。JPNTestのDP-420練習問題は本試験の出題範囲に沿った281の問題で構成されており、2026年の試験対策にも対応しています。

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Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DBのQ&A

Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB 認定 DP-420 試験問題：

問題 #1

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 database in an Azure Cosmos DB for NoSQL account that is configured for multi- region writes.
You need to use the Azure Cosmos DB SDK to implement the conflict resolution policy for a container. The solution must ensure that any conflicts are sent to the conflicts feed.
Solution: You set ConflictResolutionMode to LastWriterWins and you use the default settings for the policy.
Does this meet the goal?

A. Yes
B. No

問題 #2

You have a database in an Azure Cosmos DB for NoSQL account. The database contains a container named container1. The indexing mode of 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?

A. Modify the index attributes in Cognitive Search to Searchable
B. Modify the index attributes in Cognitive Search to Retrievable
C. Change the indexing mode of container1 to consistent
D. Modify the indexing policy of container1 to exclude the /* path

問題 #3

Hotspot Question
You have an Azure Cosmos DB for NoSQL account that contains a container named Container1.
You add a composite index to the default indexing policy of Container1. The index has the following definition.
firstName ASC, age ASC
You plan to execute the following query against Container1.
SELECT *
FROM C
WHERE c.firstName = "John"
AND c.age > 21
AND c._ts < 1612213196
You need to optimize the performance of the query by adding an additional index.
How should you complete the additional index? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

問題 #4

You have an Azure Cosmos DB for NoSQL account named account1.
You have an app named App1 that connects to account1 and uses strong consistency for all requests.
You implement the Azure Cosmos DB integrated cache for account1.
You need to ensure that App1 uses the integrated cache.
What should you do?

A. Set the connectivity mode to direct mode over TCP.
B. Set MaxIntegratedCacheStaleness to 0.
C. Change the request consistency level to session.
D. Change the request consistency level to bounded staleness.

問題 #5

You are designing an Azure Cosmos DB for NoSQL solution to store data from IoT devices.
Writes from the devices will be occur every second.
The following is a sample of the data.

You need to select a partition key that meets the following requirements for writes:
- Minimizes the partition skew
- Avoids capacity limits
- Avoids hot partitions
What should you do?

A. Create a new synthetic key that contains deviceId and deviceManufacturer.
B. Create a new synthetic key that contains deviceId and a random number.
C. Create a new synthetic key that contains deviceId and sensor1Value.
D. Use timestamp as the partition key.

解説：