Microsoft AZ-204 Online Practice Questions and Exam Preparation

Microsoft AZ-204 Online Questions & Answers

• Question 131:

  HOTSPOT

  You are developing an application that uses Azure Storage Queues.

  You have the following code:

  

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

  NOTE: Each correct selection is worth one point.

  

  

  ---

  Box 1: No

  The QueueDescription.LockDuration property gets or sets the duration of a peek lock; that is, the amount of time that the message is locked for other receivers. The maximum value for LockDuration is 5 minutes; the default value is 1 minute.

  Box 2: Yes

  You can peek at the message in the front of a queue without removing it from the queue by calling the PeekMessage method.

  Box 3: Yes

  https://docs.microsoft.com/en-us/azure/storage/queues/storage-dotnet-how-to-use-queues

  https://docs.microsoft.com/en-us/dotnet/api/microsoft.servicebus.messaging.queuedescription.lockduration

• Question 132:

  You are developing an application to manage shipping information for cargo ships. The application will use Azure Cosmos D8 for storage.The application must run offline when ships are at sea. The application must be connected to Azure when ships are in port.

  Which Azure Cosmos D8 API should you use for the application?

  A. Core
  B. MongoDe
  C. Cassandra
  D. Gremlin
  C. Cassandra

• Question 133:

  HOTSPOT

  An organization deploys a blob storage account. Users take multiple snapshots of the blob storage account over time.

  You need to delete all snapshots of the blob storage account. You must not delete the blob storage account itself.

  How should you complete the code segment? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  

  

  ---

  Box 1: DeleteSnapshotsOption

  Sample code in powershell: //dont forget to add the include snapshots :) await batchClient.DeleteBlobsAsync(listofURIforBlobs, Azure.Storage.Blobs.Models.DeleteSnapshotsOption.IncludeSnapshots);

  Sample code in .Net: // Create a batch with three deletes

  BlobBatchClient batchClient = service.GetBlobBatchClient();

  BlobBatch batch = batchClient.CreateBatch();

  batch.DeleteBlob(foo.Uri, DeleteSnapshotsOption.IncludeSnapshots);

  batch.DeleteBlob(bar.Uri, DeleteSnapshotsOption.OnlySnapshots);

  batch.DeleteBlob(baz.Uri);

  // Submit the batch

  batchClient.SubmitBatch(batch); Box 2: OnlySnapshots

  https://docs.microsoft.com/en-us/dotnet/api/overview/azure/storage.blobs.batch-readme

  https://stackoverflow.com/questions/39471212/programmatically-delete-azure-blob-storage-objects-in-bulks

• Question 134:

  You develop and add several functions to an Azure Function app that uses the latest runtime host. The functions contain several REST API endpoints secured by using SSL. The Azure Function app runs in a Consumption plan.

  You must send an alert when any of the function endpoints are unavailable or responding too slowly.

  You need to monitor the availability and responsiveness of the functions.

  What should you do?

  A. Create a URL ping test.
  B. Create a timer triggered function that calls TrackAvailability() and send the results to Application Insights.
  C. Create a timer triggered function that calls GetMetric("Request Size") and send the results to Application Insights.
  D. Add a new diagnostic setting to the Azure Function app. Enable the FunctionAppLogs and Send to Log Analytics options.
  B. Create a timer triggered function that calls TrackAvailability() and send the results to Application Insights.

  ---

  Explanation

  You can create an Azure Function with TrackAvailability() that will run periodically according to the configuration given in TimerTrigger function with your own business logic. The results of this test will be sent to your Application Insights resource, where you will be able to query for and alert on the availability results data. This allows you to create customized tests similar to what you can do via Availability Monitoring in the portal. Customized tests will allow you to write more complex availability tests than is possible using the portal UI, monitor an app inside of your Azure VNET, change the endpoint address, or create an availability test even if this feature is not available in your region.

  https://docs.microsoft.com/en-us/azure/azure-monitor/app/availability-azure-functions

• Question 135:

  DRAG DROP

  You are implementing an order processing system. A point of sale application publishes orders to topics in an Azure Service Bus queue. The Label property for the topic includes the following data:

  

  The system has the following requirements for subscriptions:

  

  You need to implement filtering and maximize throughput while evaluating filters.

  Which filter types should you implement? To answer, drag the appropriate filter types to the correct subscriptions. Each filter type 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 correct selection is worth one point.

  Select and Place:

  

  

  ---

  FutureOrders: SQLFilter

  HighPriortyOrders: CorrelationFilter

  CorrelationID only InternationalOrders: SQLFilter

  Country NOT USA requires an SQL Filter

  HighQuantityOrders: SQLFilter

  Need to use relational operators so an SQL Filter is needed.

  AllOrders: No Filter

  SQL Filter: SQL Filters - A SqlFilter holds a SQL-like conditional expression that is evaluated in the broker against the arriving messages' user-defined properties and system properties. All system properties must be prefixed with sys. in the conditional expression. The SQL-language subset for filter conditions tests for the existence of properties (EXISTS), as well as for null-values (IS NULL), logical NOT/AND/OR, relational operators, simple numeric arithmetic, and simple text pattern matching with LIKE.

  Correlation Filters - A CorrelationFilter holds a set of conditions that are matched against one or more of an arriving message's user and system properties. A common use is to match against the CorrelationId property, but the application can also choose to match against ContentType, Label, MessageId, ReplyTo, ReplyToSessionId, SessionId, To, and any user-defined properties. A match exists when an arriving message's value for a property is equal to the value specified in the correlation filter. For string expressions, the comparison is case-sensitive. When specifying multiple match properties, the filter combines them as a logical AND condition, meaning for the filter to match, all conditions must match.

  Boolean filters - The TrueFilter and FalseFilter either cause all arriving messages (true) or none of the arriving messages (false) to be selected for the subscription.

  References:

  https://docs.microsoft.com/en-us/azure/service-bus-messaging/topic-filters

• Question 136:

  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 App Service web app named WebApp1 and an Azure Functions app named Function1. WebApp1 is associated with an Application Insights instance named appinsights1.

  You configure a web test and a corresponding alert for WebApp1 in appinsights1. Each alert triggers a delivery of email to your mailbox.

  You need to ensure that each alert also triggers execution of Function1.

  Solution: Configure an Azure Monitor Insights workbook.

  Does the solution meet the goal?

  A. Yes
  B. No
  A. Yes

• Question 137:

  HOTSPOT

  You plan to deploy a new application to a Linux virtual machine (VM) that is hosted in Azure.

  The entire VM must be secured at rest by using industry-standard encryption technology to address organizational security and compliance requirements.

  You need to configure Azure Disk Encryption for the VM.

  How should you complete the Azure CLI commands? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  

  

  ---

  Box 1: keyvault

  Create an Azure Key Vault with az keyvault create and enable the Key Vault for use with disk encryption. Specify a unique Key Vault name for keyvault_name as follows:

  keyvault_name=myvaultname$RANDOM az keyvault create \

  --name $keyvault_name \

  --resource-group $resourcegroup \

  --location eastus \

  --enabled-for-disk-encryption True

  Box 2: keyvault key

  The Azure platform needs to be granted access to request the cryptographic keys when the VM boots to decrypt the virtual disks. Create a cryptographic key in your Key Vault with az keyvault key create. The following example creates a key named myKey:

  az keyvault key create \

  --vault-name $keyvault_name \

  --name myKey \

  --protection software Box 3: vm

  Create a VM with az vm create. Only certain marketplace images support disk encryption. The following example creates a VM named myVM using an Ubuntu 16.04 LTS image:

  az vm create \

  --resource-group $resourcegroup \

  --name myVM \

  --image Canonical:UbuntuServer:16.04-LTS:latest \

  --admin-username azureuser \

  --generate-ssh-keys \ Box 4: vm encryption

  Encrypt your VM with az vm encryption enable:

  az vm encryption enable \

  --resource-group $resourcegroup \

  --name myVM \

  --disk-encryption-keyvault $keyvault_name \

  --key-encryption-key myKey \

  --volume-type all Note: seems to an error in the question. Should have enable instead of create.

  Box 5: all

  Encrypt both data and operating system.

  https://docs.microsoft.com/en-us/azure/virtual-machines/linux/disk-encryption-cli-quickstart

• Question 138:

  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 deploy an Azure Container Apps app and disable ingress on the container app.

  Users report that they are unable to access the container app. You investigate and observe that the app has scaled to 0 instances.

  You need to resolve the issue with the container app.

  Solution: Enable ingress, create a TCP scale rule, and apply the rule to the container app.

  Does the solution meet the goal?

  A. Yes
  B. No
  B. No

• Question 139:

  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 are developing an Azure solution to collect point-of-sale (POS) device data from 2,000 stores located throughout the world. A single device can produce 2 megabytes (MB) of data every 24 hours. Each store location has one to five devices that send data.

  You must store the device data in Azure Blob storage. Device data must be correlated based on a device identifier. Additional stores are expected to open in the future.

  You need to implement a solution to receive the device data.

  Solution: Provision an Azure Event Grid. Configure event filtering to evaluate the device identifier.

  Does the solution meet the goal?

  A. Yes
  B. No
  B. No

  ---

  Explanation

  Instead use an Azure Service Bus, which is used order processing and financial transactions.

  Note: An event is a lightweight notification of a condition or a state change. Event hubs is usually used reacting to status changes.

  https://docs.microsoft.com/en-us/azure/event-grid/compare-messaging-services

• Question 140:

  HOTSPOT

  You develop a web app that interacts with Azure Active Directory (Azure AD) groups by using Microsoft Graph.

  You build a web page that shows all Azure AD groups that are not of the type 'Unified'.

  You need to build the Microsoft Graph query for the page.

  How should you complete the query? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  

  

  ---

  Box 1: filter

  Example:

  To list only Microsoft 365 groups (aka unified groups), apply a filter on groupTypes:

  GET

  https://graph.microsoft.com/v1.0/groups?$filter=groupTypes/any(c:c+eq+'Unified')

  Incorrect:

  * search

  The $search query parameter supports tokenization only on the displayName and description fields and requires the ConsistencyLevel header.

  Box 2: groupTypes/any(ss ne 'Unified')

  Example: See option 2 below.

  For example, to retrieve only inactive user accounts, you can run either of these queries that use the $filter query parameter.

  Option 1: Use the $filter query parameter with the eq operator. This request will work by default, that is, the request does not require the advanced query parameters.

  GET

  https://graph.microsoft.com/v1.0/users?$filter=accountEnabled

  eq false

  Option 2: Use the $filter query parameter with the ne operator. This request is not supported by default because the ne operator is only supported in advanced queries. Therefore, you must add the ConsistencyLevel header set to eventual and use the $count=true query string.

  GET

  https://graph.microsoft.com/v1.0/users?$filter=accountEnabled

  ne true&$count=true

  ConsistencyLevel: eventual

  Box 3: $count=true

  https://learn.microsoft.com/en-us/graph/api/group-list

  https://learn.microsoft.com/en-us/graph/aad-advanced-queries