AZ-204 practice questions 191–200

1. Question 191 · 462 in bank

   You are building a website that uses Azure Blob storage for data storage. You configure Azure Blob storage lifecycle to move all blobs to the archive tier after 30 days. Customers have requested a service-level agreement (SLA) for viewing data older than 30 days. You need to document the minimum SLA for data recovery. Which SLA should you use?

   • Aat least two days
   • Bbetween one and 15 hours
   • Cat least one day
   • Dbetween zero and 60 minutes

   Show answer

   Answer: B

   Explanation

   Correct Answer: B - Standard priority: The rehydration request will be processed in the order it was received and may take up to 15 hours. - High priority: The rehydration request will be prioritized over Standard requests and may finish in under 1 hour for objects under ten GB in size. Reference: https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-storage-tiers?tabs=azure-portal#archive-access-tier https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-rehydration?tabs=azure-portal

   Source: Adapted from community discussion — mlantonis

   References

   • Microsoft Learn
   • Microsoft Learn
   • Microsoft Learn
   • Microsoft Learn

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2. Question 192 · 462 in bank

   DRAG DROP - You develop an Azure solution that uses Cosmos DB. The current Cosmos DB container must be replicated and must use a partition key that is optimized for queries. You need to implement a change feed processor solution. Which change feed processor components should you use? To answer, drag the appropriate components to the correct requirements. Each component 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 the content. NOTE: Each correct selection is worth one point. Select and Place:

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   Explanation

   Box 1: The monitored container - The monitored container has the data from which the change feed is generated. Any inserts and updates to the monitored container are reflected in the change feed of the container. Box 2: The lease container - The lease container acts as a state storage and coordinates processing the change feed across multiple workers. The lease container can be stored in the same account as the monitored container or in a separate account. Box 3: The host: A host is an application instance that uses the change feed processor to listen for changes. Multiple instances with the same lease configuration can run in parallel, but each instance should have a different instance name. Box 4: The delegate - The delegate is the code that defines what you, the developer, want to do with each batch of changes that the change feed processor reads. Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/change-feed-processor

   Source: Adapted from community discussion — gmishra88

   References

   • Microsoft Learn

   

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3. Question 193 · 462 in bank

   HOTSPOT - You are developing a web application that will use Azure Storage. Older data will be less frequently used than more recent data. You need to configure data storage for the application. You have the following requirements: ✑ Retain copies of data for five years. ✑ Minimize costs associated with storing data that is over one year old. ✑ Implement Zone Redundant Storage for application data. What should you do? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point. Hot Area:

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   Explanation

   Reference: https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-storage-tiers https://docs.microsoft.com/en-us/azure/storage/common/storage-redundancy?toc=/azure/storage/blobs/toc.json

   Source: Adapted from community discussion — gmishra88

   References

   • Microsoft Learn
   • Microsoft Learn
   • Microsoft Learn
   • Microsoft Learn
   • Microsoft Learn

   

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4. Question 194 · 462 in bank

   HOTSPOT - A company develops a series of mobile games. All games use a single leaderboard service. You have the following requirements: ✑ Code must be scalable and allow for growth. ✑ Each record must consist of a playerId, gameId, score, and time played. ✑ When users reach a new high score, the system will save the new score using the SaveScore function below. Each game is assigned an Id based on the series title.

   

   You plan to store customer information in Azure Cosmos DB. The following data already exists in the database:

   

   You develop the following code to save scores in the data store. (Line numbers are included for reference only.)

   

   You develop the following code to query the database. (Line numbers are included for reference only.)

   

   For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area:

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   Explanation

   Box 1: Yes - Create a table. A CloudTableClient object lets you get reference objects for tables and entities. The following code creates a CloudTableClient object and uses it to create a new CloudTable object, which represents a table // Retrieve storage account from connection-string. CloudStorageAccount storageAccount = CloudStorageAccount.parse(storageConnectionString); // Create the table client. CloudTableClient tableClient = storageAccount.createCloudTableClient(); // Create the table if it doesn't exist. String tableName = "people"; CloudTable cloudTable = tableClient.getTableReference(tableName); cloudTable.createIfNotExists(); Box 2: No - New records are inserted with TableOperation.insert. Old records are not updated. To update old records TableOperation.insertOrReplace should be used instead. Box 3: No - Box 4: Yes - Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/table-storage-how-to-use-java

   Source: Adapted from community discussion — PrepX

   References

   • Microsoft Learn
   • Microsoft Learn
   • Microsoft Learn
   • Microsoft Learn

   

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5. Question 195 · 462 in bank

   You develop and deploy a web application to Azure App Service. The application accesses data stored in an Azure Storage account. The account contains several containers with several blobs with large amounts of data. You deploy all Azure resources to a single region. You need to move the Azure Storage account to the new region. You must copy all data to the new region. What should you do first?

   • AExport the Azure Storage account Azure Resource Manager template
   • BInitiate a storage account failover
   • CConfigure object replication for all blobs
   • DUse the AzCopy command line tool
   • ECreate a new Azure Storage account in the current region
   • FCreate a new subscription in the current region

   Show answer

   Answer: A

   Explanation

   We can create a new Storage account in the new region, using the existing storage account ARM template. All we need to do is change the region name after exporting the ARM of existing account..

   Source: Adapted from community discussion — [Removed]

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6. Question 196 · 462 in bank

   HOTSPOT - You are developing an application to collect the following telemetry data for delivery drivers: first name, last name, package count, item id, and current location coordinates. The app will store the data in Azure Cosmos DB. You need to configure Azure Cosmos DB to query the data. Which values should you use? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point. Hot Area:

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   Explanation

   Box 1: Core (SQL) Core(SQL) API stores data in document format. It offers the best end-to-end experience as we have full control over the interface, service, and the SDK client libraries. SQL API supports analytics and offers performance isolation between operational and analytical workloads. Box 2: item id - item id is a unique identifier and is suitable for the partition key. Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/choose-api https://docs.microsoft.com/en-us/azure/cosmos-db/partitioning-overview

   Source: Adapted from community discussion — warchoon

   References

   • Microsoft Learn
   • Microsoft Learn
   • Microsoft Learn

   

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7. Question 197 · 462 in bank

   DRAG DROP - You are implementing an Azure solution that uses Azure Cosmos DB and the latest Azure Cosmos DB SDK. You add a change feed processor to a new container instance. You attempt to read a batch of 100 documents. The process fails when reading one of the documents. The solution must monitor the progress of the change feed processor instance on the new container as the change feed is read. You must prevent the change feed processor from retrying the entire batch when one document cannot be read. You need to implement the change feed processor to read the documents. Which features should you use? To answer, drag the appropriate features to the cored requirements. Each feature 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 cored selection is worth one point. Select and Place:

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   Explanation

   Box 1: Change feed estimator - You can use the change feed estimator to monitor the progress of your change feed processor instances as they read the change feed or use the life cycle notifications to detect underlying failures. Box 2: Dead-letter queue - To prevent your change feed processor from getting "stuck" continuously retrying the same batch of changes, you should add logic in your delegate code to write documents, upon exception, to a dead-letter queue. This design ensures that you can keep track of unprocessed changes while still being able to continue to process future changes. The dead-letter queue might be another Cosmos container. The exact data store does not matter, simply that the unprocessed changes are persisted. Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/sql/change-feed-processor

   Source: Adapted from community discussion — sarmaria

   References

   • Microsoft Learn
   • Microsoft Learn

   

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8. Question 198 · 462 in bank

   HOTSPOT - You are developing an application that uses a premium block blob storage account. The application will process a large volume of transactions daily. You enable Blob storage versioning. You are optimizing costs by automating Azure Blob Storage access tiers. You apply the following policy rules to the storage account. (Line numbers are included for reference only.)

   

   For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area:

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   Explanation

   I guess, third statement (The policy rule tiers..) result is Yes. Container name "transactions" is in prefixMatch. https://docs.microsoft.com/en-us/azure/storage/blobs/lifecycle-management-overview#archive-data-after-ingest Solution is: - No - No - Yes - No

   Source: Adapted from community discussion — Tenk14

   References

   • Microsoft Learn
   • Microsoft Learn
   • Microsoft Learn

   

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9. Question 199 · 462 in bank

   An organization deploys Azure Cosmos DB. You need to ensure that the index is updated as items are created, updated, or deleted. What should you do?

   • ASet the indexing mode to Lazy.
   • BSet the value of the automatic property of the indexing policy to False.
   • CSet the value of the EnableScanInQuery option to True.
   • DSet the indexing mode to Consistent.

   Show answer

   Answer: D

   Explanation

   Answer: D (consistent) Setting indexing mode to consistent ensures that index is updated in sync with data Setting it to lazy means index is updated async, meaning you may not get latest version of data Setting the value of the automatic property to false means you have to manually manage indexing of data Setting EnableScanInQuery to true allows query operations to perform scans across all documents, this is not really relevant + it provides poor performance

   Source: Adapted from community discussion — kayvg

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10. Question 200 · 462 in bank

    Select 2

    You are developing a .Net web application that stores data in Azure Cosmos DB. The application must use the Core API and allow millions of reads and writes. The Azure Cosmos DB account has been created with multiple write regions enabled. The application has been deployed to the East US2 and Central US regions. You need to update the application to support multi-region writes. What are two possible ways to achieve this goal? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.

    • AUpdate the ConnectionPolicy class for the Cosmos client and populate the PreferredLocations property based on the geo-proximity of the application.
    • BUpdate Azure Cosmos DB to use the Strong consistency level. Add indexed properties to the container to indicate region.
    • CUpdate the ConnectionPolicy class for the Cosmos client and set the UseMultipleWriteLocations property to true.
    • DCreate and deploy a custom conflict resolution policy.
    • EUpdate Azure Cosmos DB to use the Session consistency level. Send the SessionToken property value from the FeedResponse object of the write action to the end-user by using a cookie.

    Show answer

    Answer: AC

    Explanation

    The goal is "You need to update the application to support multi-region writes", that is enable multi-region writes (bool, option C) and add the regions (option A) Then you have to apply the Conflict resolution policies.This can be LLW(default, not mentioned) or custom (option D). Hence : there is only ONE way to to support multi-region writes (both apply C AND A) and there are subsequently TWO ways to apply the Conflict resolution policies (@ SQL) to solve write, update and delete conflicts of which one is mentioned in the question (D). To support multi-region writes I would answer A and C , but they have to be set both, not one or the other. See https://learn.microsoft.com/en-us/azure/cosmos-db/sql/how-to-multi-master?tabs=api-async and https://learn.microsoft.com/en-us/azure/cosmos-db/conflict-resolution-policies

    Source: Adapted from community discussion — coffecold

    References

    • Microsoft Learn
    • Microsoft Learn
    • Microsoft Learn

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AZ-204 practice, question 191. 462 questions available.