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To pass the DP-420 exam, candidates need to demonstrate their competence in designing, developing, and deploying Azure Cosmos DB solutions. DP-420 exam consists of multiple-choice questions, scenario-based questions, and performance-based tasks that test the candidate's ability to design and implement cloud-native applications using Azure Cosmos DB. DP-420 exam also covers topics such as data modeling, data partitioning, indexing, querying, and tuning the performance of Azure Cosmos DB solutions.
The Microsoft DP-420 Exam Tests the candidate’s knowledge and skills in various topics such as designing and implementing data access patterns using Cosmos DB, designing and implementing partitioning strategies, designing and implementing global distribution, and designing and implementing disaster recovery and data synchronization. DP-420 exam also tests the candidate’s knowledge and skills in developing and implementing serverless and container-based applications using Cosmos DB.
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Azure Cosmos DB is a globally distributed, multi-model database service that offers high availability, low latency, and automatic scaling. It is designed to be used with cloud-native applications and provides support for multiple APIs, including SQL, MongoDB, Cassandra, and Azure Table Storage. The DP-420 Exam covers topics such as data modeling, partitioning, indexing, and querying in Azure Cosmos DB. You'll also learn how to use Azure Functions, Azure Event Grid, and Azure Stream Analytics to build event-driven architectures.
NEW QUESTION # 60
You have an Azure Cosmos DB for NoSQL account1 that is configured for automatic failover. The account1 account has a single read-write region in West US and a and a read region in East US.
You run the following PowerShell command.
What is the effect of running the command?
Answer: B
Explanation:
You can use the Set-AzCosmosDBAccountRegion cmdlet to update the regions that an Azure Cosmos DB account uses. You can use this cmdlet to add a region or change the region failover order. The cmdlet requires a resource group name, an Azure Cosmos DB account name, and a list of regions in desired failover order1.
For your scenario, based on the PowerShell command, you are using the Set-AzCosmosDBAccountRegion cmdlet to update the regions for an Azure Cosmos DB account named account1 that is configured for automatic failover. The command specifies two regions: West US and East US. The effect of running the command is that the account will be configured for multi-region writes.
Multi-region writes is a feature of Azure Cosmos DB that allows you to write data to any region in your account and have it automatically replicated to all other regions. This feature provides high availability and low latency for write operations across multiple regions. To enable multi-region writes, you need to specify at least tworegions in your account and set them as write regions2. In your command, you are setting both West US and East US as write regions by using the -IsZoneRedundant parameter with a value of $true for both regions.
NEW QUESTION # 61
You plan to store order data in an Azure Cosmos DB for NoSQL account. The data contains information about orders and their associated items.
You need to develop a model that supports read operations for orders. The solution must minimize the number of requests.
What should you do?
Answer: C
Explanation:
By denormalizing data, your application may need to issue fewer queries and updates to complete common operations.
Typically denormalized data models provide better read performance.
Note: In general, use embedded data models when:
There are contained relationships between entities.
There are one-to-few relationships between entities.
There's embedded data that changes infrequently.
There's embedded data that will not grow without bound.
There's embedded data that is queried frequently together.
Reference:
https://docs.microsoft.com/en-us/azure/cosmos-db/sql/modeling-data
NEW QUESTION # 62
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?
Answer: D
Explanation:
When we are using autoscale the container will not scale to 0, it will be at least 10% of your maximum throughput.
https://azure.microsoft.com/en-us/pricing/details/cosmos-db/autoscale-provisioned/
NEW QUESTION # 63
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 application to use the change feed processor to read the change feed and you configure the application to trigger the function.
Does this meet the goal?
Answer: A
Explanation:
Instead configure an Azure Monitor alert to trigger the function.
You can set up alerts from the Azure Cosmos DB pane or the Azure Monitor service in the Azure portal.
NEW QUESTION # 64
You have a database in an Azure Cosmos DB SQL API Core (SQL) account that is used for development.
The database is modified once per day in a batch process.
You need to ensure that you can restore the database if the last batch process fails. The solution must minimize costs.
How should you configure the backup settings? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
NEW QUESTION # 65
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