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The DP-420 Exam is designed for professionals who have experience working with Azure Cosmos DB, Microsoft's globally distributed, multi-model database service. DP-420 exam tests the candidate's knowledge of cloud-native application development principles, including the use of Azure Cosmos DB's APIs, query languages, and data modeling techniques. Candidates will also be tested on their ability to design and implement secure, scalable, and highly available cloud-native applications.

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Microsoft DP-420 exam is intended for developers, architects, and database administrators with experience in cloud computing, Azure, and NoSQL data management. Candidates who pass the DP-420 exam will be able to demonstrate their proficiency in designing and implementing cloud-native applications using Azure Cosmos DB. They will also have the ability to create solutions that can scale globally, provide high availability, and perform efficiently. Passing DP-420 Exam is an excellent way to showcase your expertise in cloud-native application development and increase your marketability as a professional.

Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Sample Questions (Q254-Q259):

NEW QUESTION # 254
The following is a sample of a document in orders.

The orders container uses customer as the partition key.
You need to provide a report of the total items ordered per month by item type. The solution must meet the following requirements:
Ensure that the report can run as quickly as possible.
Minimize the consumption of request units (RUs).
What should you do?

Answer: B

Explanation:
You can facilitate aggregate data by using Change Feed and Azure Functions, and then use it for reporting.
Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/change-feed


NEW QUESTION # 255
You have a container named container1 in an Azure Cosmos DB Core (SQL) API account. The container1 container has 120 GB of data.
The following is a sample of a document in container1.

The orderId property is used as the partition key.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation:

Box 1: Yes
Records with different OrderIDs will match.
Box 2: Yes
Records with different OrderIDs will match.
Box 3: No
Only records with one specific OrderId will match


NEW QUESTION # 256
You have an Azure Cosmos DB Core (SQL) account that has a single write region in West Europe.
database named db

For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation

Box 1: Yes
The Automatic failover option allows Azure Cosmos DB to failover to the region with the highest failover priority with no user action should a region become unavailable.
Box 2: No
West Europe is used for failover. Only North Europe is writable.
To Configure multi-region set UseMultipleWriteLocations to true.
Box 3: Yes
Provisioned throughput with single write region costs $0.008/hour per 100 RU/s and provisioned throughput with multiple writable regions costs $0.016/per hour per 100 RU/s.
Reference:
https://docs.microsoft.com/en-us/azure/cosmos-db/sql/how-to-multi-master
https://docs.microsoft.com/en-us/azure/cosmos-db/optimize-cost-regions


NEW QUESTION # 257
You have an Azure Cosmos DB for NoSQL account that hosts a container named Customers. You need to add customers to Customers by using the Azure Cosmos DB Spark Connector. How should you complete the code? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation:


NEW QUESTION # 258
You have an Azure subscription that contains an Azure Cosmos DB for NoSQL database named db1. The subscription is linked to a Microsoft Entra tenant that contains a user named User1.
You need to delegate permissions to User1 to meet the following requirements:
- Ensure that User1 can manage db1.
- Prevent User1 from accessing connection strings.
- Prevent User1 from accessing the data stored in db1.
Which role should you assign to User1?

Answer: B

Explanation:
To ensure the user can only manage the database without accessing connection strings or stored data, you should assign the Cosmos DB Operator role.
Role Details and Permissions
This role is specifically designed for the control plane, allowing administrative tasks while strictly isolating data-plane access.
Management Capabilities: The user can manage Azure Cosmos DB accounts, databases, and containers.
Access Restrictions: By design, this role cannot view or regenerate account keys (connection strings).
Data Isolation: This role does not grant permissions to read, write, or query the actual data stored within the containers.
Reference:
https://learn.microsoft.com/en-us/azure/cosmos-db/how-to-connect-role-based-access-control


NEW QUESTION # 259
......

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