Practice Free DP-420 Exam Online Questions

HOTSPOT

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.

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HOTSPOT

You have an Azure subscription.

You need to deploy the following resources to an Azure Cosmos DB for NoSQL account:

• A container

• A user-defined function (UDF)

The solution must minimize the possibility of the deployment failing.

How should you complete the template? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

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HOTSPOT

You have an Azure Cosmos DB for NoSQL container.

The container contains items that have the following properties.

You need to protect the data stored in the container by using Always Encrypted. For each property, you must use the strongest type of encryption and ensure that queries execute properly.

What is the strongest type of encryption that you can apply to each property? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

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Explanation:

Box 1 = Randomized

Box 2 = Deterministic

Always Encrypted for Azure Cosmos DB supports two types of encryption: deterministic and randomized1. Deterministic encryption always produces the same encrypted value for any given plain text value. Randomized encryption produces a different encrypted value for the same plain text value.

For dateOfBirth, randomized encryption is the strongest type of encryption because it provides better protection against statistical analysis and brute-force attacks. Deterministic encryption would not be suitable for dateOfBirth because it could reveal patterns or allow equality comparisons1. For healthStatus, deterministic encryption is the strongest type of encryption because it allows queries to perform equality comparisons and filters on the encrypted property. Randomized encryption would not be suitable for healthStatus because it would prevent any queries on the encrypted property1.

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 an Azure Cosmos DB Core (SQL) API account named account 1 that uses autoscale throughput.

You need to run an Azure function when the normalized request units per second for a container in account1 exceeds a specific value.

Solution: You configure an Azure Monitor alert to trigger the function.

Does this meet the goal?

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HOTSPOT

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.

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.

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HOTSPOT

You have a multi-region Azure Cosmos DB account named account1 that has a default consistency level of strong.

You have an app named App1 that is configured to request a consistency level of session.

How will the read and write operations of App1 be handled? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

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Explanation:

Box 1 = Write and replicate data to every region synchronously

This is because the write concern is mapped to the default consistency level configured on your Azure Cosmos DB account2, which is strong in this case. Strong consistency ensures that every write operation is synchronously committed to every region associated with your Azure Cosmos DB account1. The request level consistency level of session only applies to the read operations of App11.

Box 2: That has the lowest estimated latency to the client

This is because the read operations of App1 will use the session consistency level that is specified in the request options. Session consistency is a client-centric consistency model that guarantees monotonic reads, monotonic writes, and read-your-own-writes within a session. A session is scoped to a client connection or a stored procedure execution. Session consistency allows clients to read from any region that has the lowest latency to the client.

You have a container in an Azure Cosmos DB for NoSQL account that stores data about orders.

The following is a sample of an order document.

Documents are up to 2 KB.

You plan to receive one million orders daily.

Customers will frequently view their past order history.

You are the evaluating whether to use order-Date as the partition key.

What are two effects of using order-Date as the partition key? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.

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You provision an Azure Cosmos DB for NoSQL container. You set the throughput to Autoscale, and the maximum request units per second {RU/s) to 20,000.

For how many RU/s will you be charged when the actual RU/s usage is zero?

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You have an Azure subscription that contains the resources shown in the following table.

You need to store the account key of account1 in KV1.

What should you use?

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HOTSPOT

You have the following Azure Resource Manager (ARM) template.

You plan to deploy the template in incremental mode.

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

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