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Microsoft Azure Developer Associate AZ-204 PExamractice Test (With a total of 13 Practice Questions)
QUESTION 1
HOTSPOT
You have an app that stores player scores for an online game. The app stores data in Azure tables using a class named
PlayerScore as the table entity. The table is populated with 100,000 records. You are reviewing the following section of
code that is intended to retrieve 20 records where the player score exceeds 15,000. (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:
Correct Answer:
QUESTION 2
HOTSPOT
You are developing a back-end Azure App Service that scales based on the number of messages contained in a
Service Bus queue.
A rule already exists to scale up the App Service when the average queue length of unprocessed and valid queue
messages is greater than 1000.
You need to add a new rule that will continuously scale down the App Service as long as the scale up condition is not
met.
How should you configure the Scale rule? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:
Correct Answer:
Box 1: Service bus queue
You are developing a back-end Azure App Service that scales based on the number of messages contained in a
Service Bus queue.
Box 2: ActiveMessage Count
ActiveMessageCount: Messages in the queue or subscription that are in the active state and ready for delivery.
Box 3: Count
Box 4: Less than or equal to
You need to add a new rule that will continuously scale down the App Service as long as the scale up condition is not
met.
Box 5: Decrease count by
QUESTION 3
HOTSPOT
You are creating a CLI script that creates an Azure web app and related services in Azure App Service. The web app
uses the following variables:
You need to automatically deploy code from Git-Hub to the newly created web app.
How should you complete the script? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:
Correct Answer:
Box 1: az appservice plan create
The azure group creates command successfully returns JSON result. Now we can use resource group to create a azure
app service plan
Box 2: az webapp create
Create a new web app..
Box 3: –plan $webappname
..with the serviceplan we created in step 1.
Box 4: az webapp deployment
Continuous Delivery with GitHub. Example:
az webapp deployment source config –name firstsamplewebsite1 –resource-group websites–repo-url $gitrepo –branch
master –git-token $token
Box 5: –repo-url $gitrepo –branch master –manual-integration
Reference:
https://medium.com/@satish1v/devops-your-way-to-azure-web-apps-with-azure-cli-206ed4b3e9b1
QUESTION 4
HOTSPOT
You are using Azure Front Door Service.
You are expecting inbound files to be compressed by using Brotli compression. You discover that inbound XML files are
not compressed. The files are 9 megabytes (MB) in size.
You need to determine the root cause for the issue.
To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:
Correct Answer:
QUESTION 5
DRAG DROP
You are developing a solution for a hospital to support the following use cases:
The most recent patient status details must be retrieved even if multiple users in different locations have updated the
patient record patient health monitoring data retrieved must be the current version or the prior version.
After a patient is discharged and all charges have been assessed, the patient billing record contains the final charges.
You provision a Cosmos D6 NoSQL database and set the default consistency level for the database account to Strong.
You set the value for Indexing Mode to Consistent
You must minimize latency and any impact to the availability of the solution. You must override the default consistency
level at the query level to meet the required consistency guarantees for the scenarios.
You need to configure the consistency levels to support each scenario.
Which consistency levels should you implement? To answer, drag the appropriate consistency levels to the correct
requirements. Each consistency level 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:
QUESTION 6
You are developing an application that uses Azure Blob storage.
The application must read the transaction logs of all the changes that occur to the blobs and the blob metadata in the
storage account for auditing purposes. The changes must be in the order in which they occurred, include only create,
update, delete, and copy operations and be retained for compliance reasons.
You need to process the transaction logs asynchronously.
What should you do?
A. Process all Azure Blob storage events by using Azure Event Grid with a subscriber Azure Function app.
B. Enable the change feed on the storage account and process all changes for available events.
C. Process all Azure Storage Analytics logs for successful blob events.
D. Use the Azure Monitor HTTP Data Collector API and scan the request body for successful blob events.
Correct Answer: B
Change feed support in Azure Blob Storage The purpose of the change feed is to provide transaction logs of all the
changes that occur to the blobs and the blob metadata in your storage account. The change feed provides ordered,
guaranteed, durable, immutable, read-only log of these changes. Client applications can read these logs at any time,
either in streaming or in batch mode. The change feed enables you to build efficient and scalable solutions that process
change events that occur in your Blob Storage account at a low cost.
Reference: https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-change-feed
QUESTION 7
HOTSPOT
You are implementing a software as a service (SaaS) ASP.NET Core web service that will run as an Azure Web App.
The web service will use an on-premises SQL Server database for storage. The web service also includes a WebJob
that
processes data updates. Four customers will use the web service.
Each instance of the WebJob processes data for a single customer and must run as a singleton instance.
Each deployment must be tested by using deployment slots prior to serving production data.
Azure costs must be minimized.
Azure resources must be located in an isolated network.
You need to configure the App Service plan for the Web App.
How should you configure the App Service plan? To answer, select the appropriate settings in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:
Correct Answer:
QUESTION 8
HOTSPOT
You need to implement the bindings for the CheckUserContent function.
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.
Hot Area:
Correct Answer:
Explanation:
Box 1: [BlobTrigger(..)]
Box 2: [Blob(..)]
Azure Blob storage output binding for Azure Functions. The output binding allows you to modify and delete blob storage
data in an Azure Function.
The attribute\\’s constructor takes the path to the blob and a FileAccess parameter indicating read or write, as shown in
the following example:
[FunctionName(“ResizeImage”)]
public static void Run( [BlobTrigger(“sample-images/Developing Solutions for Microsoft Azure Exam”)] Stream image,
[Blob(“sample-images-md/Developing Solutions for Microsoft Azure Exam”, FileAccess.Write)] Stream imageSmall)
{ … }
Scenario: You must create an Azure Function named CheckUserContent to perform the content checks.
The company\\’s data science group built ContentAnalysisService which accepts user generated content as a string and
returns a probable value for inappropriate content. Any values over a specific threshold must be reviewed by an
employee of Contoso, Ltd.
Reference:
https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-storage-blob-output
QUESTION 9
HOTSPOT
You are developing an Azure App Service hosted ASP.NET Core API app by using C#. The API app will allow users to
authenticate by using Twitter and Azure Active Directory (Azure AD).
Users must be authenticated before calling API methods. You must log the user\\’s name for each method call.
You need to configure the API method calls.
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:
Correct Answer:
Box 1: Authorize
Box 2: X-MS-CLIENT-PRINCIPAL-NAME
App Service passes user claims to your application by using special headers. External requests aren\\’t allowed to set
these headers, so they are present only if set by App Service. Some example headers include:
X-MS-CLIENT-PRINCIPAL-NAME X-MS-CLIENT-PRINCIPAL-ID Here\\’s the set of headers you get from Easy Auth for
a Twitter authenticated user:
{ “cookie”: “AppServiceAuthSession=Lx43…xHDTA==”, … “x-ms-client-principal-name”: “evilSnobu”, “x-ms-clientprincipal-id”: “35….”, “x-ms-client-principal-idp”: “twitter”, “x-ms-token-twitter-access-token”: “35…Dj”, “x-ms-token-twitteraccess-token-secret”: “OK3…Jx”,
}
References: https://docs.microsoft.com/en-us/azure/app-service/app-service-authentication-how-to
QUESTION 10
You need to monitor ContentUploadService accourding to the requirements. Which command should you use?
A. az monitor metrics alert create –n alert –g
Correct Answer: B
Explanation:
Scenario: An alert must be raised if the ContentUploadService uses more than 80 percent of available CPU-cores
Reference:
https://docs.microsoft.com/sv-se/cli/azure/monitor/metrics/alert
QUESTION 11
HOTSPOT
You are developing an ASP.NET Core web application. You plan to deploy the application to Azure Web App for
Containers.
The application needs to store runtime diagnostic data that must be persisted across application restarts. You have the
following code:
You need to configure the application settings so that diagnostic data is stored as required.
How should you configure the web app\\’s settings? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:
Correct Answer:
Box 1: If WEBSITES_ENABLE_APP_SERVICE_STORAGE If WEBSITES_ENABLE_APP_SERVICE_STORAGE
setting is unspecified or set to true, the /home/ directory will be shared across scale instances, and files written will
persist across restarts
Box 2: /home
Reference: https://docs.microsoft.com/en-us/azure/app-service/containers/app-service-linux-faq
QUESTION 12
You are writing code to create and run an Azure Batch job.
You have created a pool of compute nodes.
You need to choose the right class and its method to submit a batch job to the Batch service.
Which method should you use?
A. JobOperations.EnableJobAsync(String, IEnumerable,CancellationToken)
B. JobOperations.CreateJob()
C. CloudJob.Enable(IEnumerable)
D. JobOperations.EnableJob(String,IEnumerable)
E. CloudJob.CommitAsync(IEnumerable, CancellationToken)
Correct Answer: E A Batch job is a logical grouping of one or more tasks. A job includes settings common to the tasks, such as priority and
the pool to run tasks on. The app uses the BatchClient.JobOperations.CreateJob method to create a job on your pool.
The Commit method submits the job to the Batch service. Initially the job has no tasks.
{
CloudJob job = batchClient.JobOperations.CreateJob();job.Id = JobId;
job.PoolInformation = new PoolInformation { PoolId = PoolId };
job.Commit();
}
…
References:
https://docs.microsoft.com/en-us/azure/batch/quick-run-dotnet
QUESTION 13
You are creating a hazard notification system that has a single signaling server which triggers audio and visual alarms
to start and stop.
You implement Azure Service Bus to publish alarms. Each alarm controller uses Azure Service Bus to receive alarm
signals as part of a transaction. Alarm events must be recorded for audit purposes. Each transaction record must
include
information about the alarm type that was activated.
You need to implement a reply trail auditing solution.
NOTE: Each correct selection is worth one point.
A. Assign the value of the hazard message MessageId property to the DeliveryCount property.
B. Assign the value of the hazard message SequenceNumber property to the DeliveryCount property.
C. Assign the value of the hazard message MessageId property to the SequenceNumber property.
D. Assign the value of the hazard message MessageId property to the CorrelationId property.
E. Assign the value of the hazard message SessionID property to the SequenceNumber property..
F. Assign the value of the hazard message SessionID property to the ReplyToSessionId property.
Correct Answer: DF
D: CorrelationId: Enables an application to specify a context for the message for the purposes of correlation; for
example, reflecting the MessageId of a message that is being replied to.
F: ReplyToSessionId: This value augments the ReplyTo information and specifies which SessionId should be set for the
reply when sent to the reply entity.
Incorrect Answers:
A, B: DeliveryCount
Number of deliveries that have been attempted for this message. The count is incremented when a message lock
expires, or the message is explicitly abandoned by the receiver. This property is read-only.
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C, E: SequenceNumber
The sequence number is a unique 64-bit integer assigned to a message as it is accepted and stored by the broker and
functions as its true identifier. For partitioned entities, the topmost 16 bits reflect the partition identifier. Sequence
numbers
monotonically increase and are gapless. They roll over to 0 when the 48-64 bit range is exhausted. This property is readonly.
References: https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-messages-payloads
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Microsoft AZ-900, Az-204?
I want to start with the Azure AZ-204 exam. Do I need to have prior knowledge of Azure, or is it better to go with AZ-900 Fundamentals before the Az-204?
AZ-900 is not a prerequisite for obtaining any Azure certification, so technically, you can skip and move forward az-204/az-104. If you are in a hurry / have a deadline to meet to complete az-204, probably skip az-900.If not, then choose az-900 first, AZ-900 will build the foundation.
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