Microsoft DP-420 Exam Questions - Navigate Your Path to Success

The Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB (DP-420) exam is a good choice for Microsoft Developers and if the candidate manages to pass Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB exam, he/she will earn Microsoft Azure Cosmos DB Developer Specialty Certification. Below are some essential facts for Microsoft DP-420 exam candidates:

In actual Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB (DP-420) exam, a candidate can expect 40 Questions and the officially allowed time is expected to be around 100 Minutes.
TrendyCerts offers 140 Questions that are based on actual Microsoft DP-420 syllabus.
Our Microsoft DP-420 Exam Practice Questions were last updated on: Mar 06, 2025

Sample Questions for Microsoft DP-420 Exam Preparation

Question 1

You plan to store order data in Azure Cosmos DB for NoSQL account. The data contains information about orders and their associated items.

You need to develop a model that supports order read operations. The solution must minimize the number or requests.

ACreate a single database that contains one container. Store orders and order items in separate documents in the container.

BCreate a single database that contains one container. Create a separate document for each order and embed the order items into the order documents.

CCreate a database for orders and a database for order items.

DCreate a single database that contains a container for order and a container for order items.

Correct : B

Azure Cosmos DB is a multi-model database that supports various data models, such as documents, key-value, graph, and column-family3.The core content-model of Cosmos DB's database engine is based on atom-record-sequence (ARS), which allows it to store and query different types of data in a flexible and efficient way3.

To develop a model that supports order read operations and minimizes the number of requests, you should consider the following factors:

The size and shape of your data

The frequency and complexity of your queries

The latency and throughput requirements of your application

The trade-offs between storage efficiency and query performance

Based on these factors, one possible model that you could implement isB. Create a single database that contains one container. Create a separate document for each order and embed the order items into the order documents.

This model has the following advantages:

It stores orders and order items as self-contained documents that can be easily retrieved by order ID1.

It avoids storing redundant data or creating additional containers for order items1.

It allows you to view the order history of a customer with simple queries1.

It leverages the benefits of embedding data, such as reducing the number of requests, improving query performance, and simplifying data consistency2.

This model also has some limitations, such as:

It may not be suitable for some order items that have data that is greater than 2 KB, as it could exceed the maximum document size limit of 2 MB2.

It may not be optimal for scenarios where order items need to be queried independently from orders or aggregated by other criteria2.

It may not support transactions across multiple orders or customers, as transactions are scoped to a single logical partition2.

Depending on your specific use case and requirements, you may need to adjust this model or choose a different one.For example, you could use a hybrid data model that combines embedding and referencing data2, or you could use a graph data model that expresses entities and relationships as vertices and edges.

Options Selected by Other Users:

Question 2

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 conflict sent to the conflict feed.

Solution: You set ConfilictResolutionMode to Custom and you use the default settings for the policy.

Does this meet the goal?

AYes

BNo

Correct : B

Setting ConflictResolutionMode to Custom and using the default settings for the policy will not ensure that conflicts are sent to the conflict feed. You need to define a custom stored procedure using the 'conflictingItems' parameter to handle conflicts properly.