DP-420 Exam Dumps - Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB

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Question # 4

You have an Azure Cosmos DB for NoSQL account named account! that has a periodic backup policy with a four-hour backup interval and an eight-hour retention period. The account account contains a single database named db1 and containers that have stored procedures.

An administrator deletes db1 accidentally.

You need to ensure that the contents of db1, including all of its items, is available as soon as possible.

How should you perform the procedure? To answer, drag the missing actions to the correct order. Each action 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.

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Question # 5

You have an app named App1 that uses an Azure Cosmos DB for NoSQL database.

App1 uses the spatial columns shown in the following table.

You need to design an indexing strategy for App1.

Which columns can be indexed by using spatial indexes?

Col1 only

Col1 and Col2 only

Col1, Col2, and Col3 only

Col1, Col2, and CoI4 only

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Question # 6

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?

CDBPartitionKeyStatistics

CDBQueryRunTimeStatistics

CDBDataPlaneRequests

CDBControlPlaneRequests

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Question # 7

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.

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

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

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

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

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Answer:

Explanation:

Azure Cosmos DB is a multi-model database that supports various data models, such as documents, key-value, graph, and column-family3.Â The core content-model of Cosmos DBâ€™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 isÂ B. 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.Â 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.

Question # 8

You have an Azure Cosmos DB for NoSQL account.

You need to implement Always Encrypted for all the data stored in the account. The solution must minimize administrative effort.

At which level should you define the encryption policy and set the data encryption key? To answer, drag the appropriate levels to the correct requirements. Each 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.