Microsoft DP-420 Exam Questions Instant Access

Question 1

You need to provide a solution for the Azure Functions notifications following updates to con-product. The solution must meet the business requirements and the product catalog requirements.

Which two actions should you perform? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point.

AConfigure the trigger for each function to use a different leaseCollectionPrefix

BConfigure the trigger for each function to use the same leaseCollectionNair.e

CConfigure the trigger for each function to use a different leaseCollectionName

DConfigure the trigger for each function to use the same leaseCollectionPrefix

Answer : A, C

leaseCollectionPrefix: when set, the value is added as a prefix to the leases created in the Lease collection for this Function. Using a prefix allows two separate Azure Functions to share the same Lease collection by using different prefixes.

Scenario: Use Azure Functions to send notifications about product updates to different recipients.

Trigger the execution of two Azure functions following every update to any document in the con-product container.

https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-cosmosdb-v2-trigger

Question 2

You have a container named container! in an Azure Cosmos DB for NoSQL account.

You need to provide a user named User1 with the ability to insert items into container1 by using role-based access The solution must use the principle of least privilege.

Which roles should you assign to User1?

ACosmos DB Built-in Data Contributor only

BCosmos DB Operator only

CDocumentDB Account Contribute only

DDocumentDB Account Contributor and Cosmos DB Built-in Data Contributor

Answer : A

The Cosmos DB Built-in DataContributor roleprovides the necessary permissions to insert items into a container in an Azure Cosmos DB for NoSQL account. This role grants theminimum required privilegesfor the described task, adhering to the principle of least privilege.

Question 3

You have an Azure Cosmos DB for NoSQL account that contains a database named DB1 and a container named Container1. You need to manage the account by using the Azure Cosmos DB SDK. What should you do?

AList the physical partitions of Container1.

BRead a stored procedure in Container1.

CCreate a user defined function (UDF) in Container1.

DCreate a container in DB1.

Answer : C

Question 4

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?

ACDBPartitionKeyStatistics

BCDBQueryRunTimeStatistics

CCDBDataPlaneRequests

DCDBControlPlaneRequests

Answer : D

Question 5

You need to identify which connectivity mode to use when implementing App2. The solution must support the planned changes and meet the business requirements.

Which connectivity mode should you identify?

ADirect mode over HTTPS

BGateway mode (using HTTPS)

CDirect mode over TCP

Answer : C

Scenario: Develop an app named App2 that will run from the retail stores and query the data in account2. App2 must be limited to a single DNS endpoint when accessing account2.

By using Azure Private Link, you can connect to an Azure Cosmos account via a private endpoint. The private endpoint is a set of private IP addresses in a subnet within your virtual network.

When you're using Private Link with an Azure Cosmos account through a direct mode connection, you can use only the TCP protocol. The HTTP protocol is not currently supported.

https://docs.microsoft.com/en-us/azure/cosmos-db/how-to-configure-private-endpoints

Question 6

You plan to create an Azure Cosmos DB Core (SQL) API account that will use customer-managed keys stored in Azure Key Vault.

You need to configure an access policy in Key Vault to allow Azure Cosmos DB access to the keys.

Which three permissions should you enable in the access policy? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point.

AWrap Key

BGet

CList

DUpdate

ESign

FVerify

GUnwrap Key

Answer : A, B, G

Question 7

You are implementing an Azure Data Factory data flow that will use an Azure Cosmos DB (SQL API) sink to write a dataset. The data flow will use 2,000 Apache Spark partitions.

You need to ensure that the ingestion from each Spark partition is balanced to optimize throughput.

Which sink setting should you configure?

AThroughput

BWrite throughput budget

CBatch size

DCollection action

Answer : C

Batch size: An integer that represents how many objects are being written to Cosmos DB collection in each batch. Usually, starting with the default batch size is sufficient. To further tune this value, note:

Cosmos DB limits single request's size to 2MB. The formula is 'Request Size = Single Document Size * Batch Size'. If you hit error saying 'Request size is too large', reduce the batch size value.

The larger the batch size, the better throughput the service can achieve, while make sure you allocate enough RUs to empower your workload.

Incorrect Answers:

A: Throughput: Set an optional value for the number of RUs you'd like to apply to your CosmosDB collection for each execution of this data flow. Minimum is 400.

B: Write throughput budget: An integer that represents the RUs you want to allocate for this Data Flow write operation, out of the total throughput allocated to the collection.

D: Collection action: Determines whether to recreate the destination collection prior to writing.

None: No action will be done to the collection.

Recreate: The collection will get dropped and recreated

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