Online Access Free DP-420 Practice Test

You have an Azure Cosmos DB account named accounts
You need to access account1 from an on-premises environment by using a Site-to-Site VPN. What should you use?

• A.Azure Synapse Link
• B.a private endpoint
• C.a dedicated gateway

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?

• A.10,000
• B.4,000
• C.200
• D.2,000
• E.0

You have a database in an Azure Cosmos DB for NoSQL account that is configured for multi-region writes.
You need to use the Azure Cosmos DB SDK to implement the conflict resolution policy for a container. The solution must ensure that any conflict sent to the conflict feed.
Solution: You set ConfilictResolutionMode to Custom and you use the default settings for the policy.
Does this meet the goal?

• A.No
• B.Yes

Vou have an Azure Cosmos DB for NoSQL account named Cosmos1 that has a container named orders.
You have an app that updates order documents throughout the day. and the documents must remain in orders for transactional queries.
You have an Azure Storage account named account1.
You need to implement an archive process that meets the following requirements,
* Archives each new order document to account1
* Archives each updated order document to account! as the update occurs
* Ensures that the archive process continues from the last processed change after a restart
* Scales across partitions without custom polling or custom checkpoint management What should you do?

• A.Enable the Azure Blob Storage change feed for account1 and read the $blobchangefeed container.
• B.Create a client app that uses the change feed pull model and stores checkpoints in the local memory.
• C.Create an Azure Functions function that uses an Azure Cosmos OB trigger and a lease container.
• D.Query the orders container on a schedule by using the Azure Cosmos DB SDK and compare timestamps.

You plan to deploy two Azure Cosmos DB Core (SQL) API accounts that will each contain a single database.
The accounts will be configured as shown in the following table.

How should you provision the containers within each account to minimize costs? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Correct Answer:

Explanation:

Box 1: Serverless capacity mode
Azure Cosmos DB serverless best fits scenarios where you expect intermittent and unpredictable traffic with long idle times. Because provisioning capacity in such situations isn ' t required and may be cost-prohibitive, Azure Cosmos DB serverless should be considered in the following use-cases:
Getting started with Azure Cosmos DB
Running applications with bursty, intermittent traffic that is hard to forecast, or low ( < 10%) average-to-peak traffic ratio Developing, testing, prototyping and running in production new applications where the traffic pattern is unknown Integrating with serverless compute services like Azure Functions Box 2: Provisioned throughput capacity mode and autoscale throughput The use cases of autoscale include:
Variable or unpredictable workloads: When your workloads have variable or unpredictable spikes in usage, autoscale helps by automatically scaling up and down based on usage. Examples include retail websites that have different traffic patterns depending on seasonality; IOT workloads that have spikes at various times during the day; line of business applications that see peak usage a few times a month or year, and more. With autoscale, you no longer need to manually provision for peak or average capacity.
Reference:
https://docs.microsoft.com/en-us/azure/cosmos-db/serverless
https://docs.microsoft.com/en-us/azure/cosmos-db/provision-throughput-autoscale#use-cases-of-autoscale