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Microsoft AZ-204 Sample Questions
Question # 1
You need to audit the retail store sales transactions.What are two possible ways to achieve the goal? Each correct answer presents a completesolution.NOTE: Each correct selection is worth one point.
A. Update the retail store location data upload process to include blob index tags. Createan Azure Function to process the blob index tags and filter by store location
B. Enable blob versioning for the storage account. Use an Azure Function to process a listof the blob versions per day.
C. Process an Azure Storage blob inventory report by using an Azure Function. Create rulefilters on the blob inventory report,
D. Subscribe to blob storage events by using an Azure Function and Azure Event Grid.Filter the events by store location.
E. Process the change feed logs of the Azure Blob storage account by using an AzureFunction. Specify a time range for the change feed data.
Explanation: Scenario: Audit store sale transaction information nightly to validate data, process salesfinancials, and reconcile inventory.”Process the change feed logs of the Azure Blob storage account by using an AzureFunction. Specify a time range for the change feed data”: Change feed support is wellsuited for scenarios that process data based on objects that have changed. For example,applications can:Store, audit, and analyze changes to your objects, over any period of time, for security,compliance or intelligence for enterprise data management.”Subscribe to blob storage events by using an Azure Function and Azure Event Grid. Filterthe events by store location”: Azure Storage events allow applications to react to events,such as the creation and deletion of blobs. It does so without the need for complicatedcode or expensive and inefficient polling services. The best part is you only pay for whatyou use.Blob storage events are pushed using Azure Event Grid to subscribers such as AzureFunctions, Azure Logic Apps, or even to your own http listener. Event Grid provides reliableevent delivery to your applications through rich retry policies and dead-lettering.Reference:https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-change-feedhttps://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-event-overview
Question # 2
You need to implement a solution to resolve the retail store location data issue.Which three Azure Blob features should you enable? Each correct answer presents pan olthe solution.NOTE Each correct selection is worth one point
A. Immutability
B. Snapshots
C. Versioning
D. Soft delete
E. Object replication
F. Change feed
Explanation: Scenario: You must perform a point-in-time restoration of the retail store location data dueto an unexpected and accidental deletion of data.Before you enable and configure point-in-time restore, enable its prerequisites for thestorage account: soft delete, change feed, and blob versioning.Reference:https://docs.microsoft.com/en-us/azure/storage/blobs/point-in-time-restore-manage
Question # 3
You need to secure the Azure Functions to meet the security requirements.Which two actions should you perform? Each correct answer presents part of the solution.NOTE: Each correct selection is worth one point.
A. Store the RSA-HSM key in Azure Cosmos DB. Apery the built-in policies for customermanaged keys and allowed locations.
B. Create a free tier Azure App Configuration instance with a new Azure AD serviceprincipal.
C. Store the RSA-HSM key in Azure Key Vault with soft-delete and purge-protectionfeatures enabled.
D. Store the RSA-HSM key in Azure Blob storage with an Immutability policy applied to thecontainer.
E. Create a standard tier Azure App Configuration instance with an assigned Azure AD managed identity.
Explanation: Scenario: All Azure Functions must centralize management and distribution of configurationdata for different environments and geographies, encrypted by using a company-providedRSA-HSM key.Microsoft Azure Key Vault is a cloud-hosted management service that allows users toencrypt keys and small secrets by using keys that are protected by hardware securitymodules (HSMs).You need to create a managed identity for your application.Reference:https://docs.microsoft.com/en-us/azure/app-service/app-service-key-vault-references
Question # 4
You need to access data from the user claim object in the e-commerce web app.What should you do first?
A. Write custom code to make a Microsoft Graph API call from the e-commerce web app.
B. Assign the Contributor RBAC role to the e-commerce web app by using the ResourceManager create role assignment API.
C. Update the e-commerce web app to read the HTTP request header values.
D. Using the Azure CLI, enable Cross-origin resource sharing (CORS) from the ecommerce checkout API to the e-commerce web app.
Explanation: Methods to Get User Identity and Claims in a .NET Azure Functions App include:ClaimsPrincipal from the Request ContextThe ClaimsPrincipal object is also available as part of the request context and can beextracted from the HttpRequest.HttpContext. User Claims from the Request Headers.App Service passes user claims to the app by using special request headers.Reference:https://levelup.gitconnected.com/four-alternative-methods-to-get-user-identity-and-claimsin-a-net-a…
Question # 5
You need to ensure the security policies are met.What code do you add at line CS07 of ConfigureSSE.ps1?
A. –PermissionsToKeys create, encrypt, decrypt
B. –PermissionsToCertificates create, encrypt, decrypt
C. –PermissionsToCertificates wrapkey, unwrapkey, get
D. –PermissionsToKeys wrapkey, unwrapkey, get
Explanation: Scenario: All certificates and secrets used to secure data must be stored in Azure KeyVault.You must adhere to the principle of least privilege and provide privileges which areessential to perform the intended function.The Set-AzureRmKeyValutAccessPolicy parameter -PermissionsToKeys specifies an arrayof key operation permissions to grant to a user or service principal. The acceptable valuesfor this parameter: decrypt, encrypt, unwrapKey, wrapKey, verify, sign, get, list, update,create, import, delete, backup, restore, recover, purgeReference:https://docs.microsoft.com/en-us/powershell/module/azurerm.keyvault/setazurermkeyvaultaccesspolicy
Question # 6
You need to resolve the log capacity issue. What should you do?
A. Create an Application Insights Telemetry Filter
B. Change the minimum log level in the host.json file for the function
C. Implement Application Insights Sampling
D. Set a LogCategoryFilter during startup
Explanation: Scenario, the log capacity issue: Developers report that the number of log message in thetrace output for the processor is too high, resulting in lost log messages.Sampling is a feature in Azure Application Insights. It is the recommended way to reducetelemetry traffic and storage, while preserving a statistically correct analysis of applicationdata. The filter selects items that are related, so that you can navigate between items whenyou are doing diagnostic investigations. When metric counts are presented to you in theportal, they are renormalized to take account of the sampling, to minimize any effect on thestatistics.Sampling reduces traffic and data costs, and helps you avoid throttling.Reference:https://docs.microsoft.com/en-us/azure/azure-monitor/app/sampling
Question # 7
You need to ensure receipt processing occurs correctly.What should you do?
A. Use blob properties to prevent concurrency problems
B. Use blob SnapshotTime to prevent concurrency problems
C. Use blob metadata to prevent concurrency problems
D. Use blob leases to prevent concurrency problems
Explanation: You can create a snapshot of a blob. A snapshot is a read-only version of a blob that’staken at a point in time. Once a snapshot has been created, it can be read, copied, ordeleted, but not modified. Snapshots provide a way to back up a blob as it appears at amoment in time.Scenario: Processing is performed by an Azure Function that uses version 2 of the AzureFunction runtime. Once processing is completed, results are stored in Azure Blob Storageand an Azure SQL database. Then, an email summary is sent to the user with a link to theprocessing report. The link to the report must remain valid if the email is forwarded toanother user.Reference:https://docs.microsoft.com/en-us/rest/api/storageservices/creating-a-snapshot-of-a-blob
Question # 8
You need to resolve a notification latency issue. Which two actions should you perform? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.
A. Set Always On to true.
B. Ensure that the Azure Function is using an App Service plan.
C. Set Always On to false.
D. Ensure that the Azure Function is set to use a consumption plan.
Answer: A,B
Explanation:Azure Functions can run on either a Consumption Plan or a dedicated App Service Plan. If you run in adedicated mode, you need to turn on the Always On setting for your Function App to run properly. TheFunction runtime will go idle after a few minutes of inactivity, so only HTTP triggers will actually “wake up”your functions. This is similar to how WebJobs must have Always On enabled.Scenario: Notification latency: Users report that anomaly detection emails can sometimes arrive severalminutes after an anomaly is detected.Anomaly detection service: You have an anomaly detection service that analyzes log information foranomalies. It is implemented as an Azure Machine Learning model. The model is deployed as a web service. Ifan anomaly is detected, an Azure Function that emails administrators is called by using an HTTP WebHook.Reference:https://github.com/Azure/Azure-Functions/wiki/Enable-Always-On-when-running-on-dedicated-App-Service…
Question # 9
You need to ensure that the solution can meet the scaling requirements for Policy Service. Which Azure Application Insights data model should you use?
A. an Application Insights dependency
B. an Application Insights event
C. an Application Insights trace
D. an Application Insights metric
Answer: D
Explanation:Application Insights provides three additional data types for custom telemetry:Trace – used either directly, or through an adapter to implement diagnostics logging using an instrumentationframework that is familiar to you, such as Log4Net or System.Diagnostics.Event – typically used to capture user interaction with your service, to analyze usage patterns.Metric – used to report periodic scalar measurements.Scenario:Policy service must use Application Insights to automatically scale with the number of policy actions that it isperforming.Reference:https://docs.microsoft.com/en-us/azure/azure-monitor/app/data-model
Question # 10
You need to ensure that all messages from Azure Event Grid are processed. What should you use?
A. Azure Event Grid topic
B. Azure Service Bus topic
C. Azure Service Bus queue
D. Azure Storage queue
E. Azure Logic App custom connector
Explanation:As a solution architect/developer, you should consider using Service Bus queues when:Your solution needs to receive messages without having to poll the queue. With Service Bus, you canachieve it by using a long-polling receive operation using the TCP-based protocols that Service Bussupports.Reference:https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-azure-and-service-bus-queue…
Question # 11
You need to authenticate the user to the corporate website as indicated by the architectural diagram.Which two values should you use? Each correct answer presents part of the solution.NOTE: Each correct selection is worth one point.
A. ID token signature
B. ID token claims
C. HTTP response code
D. Azure AD endpoint URI
E. Azure AD tenant ID
Explanation:
Claims in access tokens JWTs (JSON Web Tokens) are split into three pieces: Header – Provides information about how to validate the token including information about the type of token and how it was signed. Payload – Contains all of the important data about the user or app that is attempting to call your service. Signature – Is the raw material used to validate the token. Your client can get an access token from either the v1.0 endpoint or the v2.0 endpoint using a variety of protocols. Scenario: User authentication (see step 5 below) The following steps detail the user authentication process: The user selects Sign in in the website.
The browser redirects the user to the Azure Active Directory (Azure AD) sign in page. The user signs in. Azure AD redirects the user’s session back to the web application. The URL includes an access token. The web application calls an API and includes the access token in the authentication header. The application ID is sent as the audience (‘aud’) claim in the access token. The back-end API validates the access token.
Reference:
https://docs.microsoft.com/en-us/azure/api-management/api-management-accessrestriction-policies
Question # 12
You need to investigate the Azure Function app error message in the development environment.What should you do?
A. Connect Live Metrics Stream from Application Insights to the Azure Function app and filter the metrics.
B. Create a new Azure Log Analytics workspace and instrument the Azure Function app with Application Insights
C. Update the Azure Function app with extension methods from Microsoft.Extensions.Logging to log events by using the log instance.
D. Add a new diagnostic setting to the Azure Function app to send logs to Log Analytics.
Explanation:
Azure Functions offers built-in integration with Azure Application Insights to monitor functions.
The following areas of Application Insights can be helpful when evaluating the behavior, performance, and errors in your functions:
Live Metrics: View metrics data as it’s created in near real-time. Failures Performance
Metrics
Reference:
https://docs.microsoft.com/en-us/azure/azure-functions/functions-monitoring
Question # 13
You need to correct the RequestUserApproval Function app error.What should you do?
A. Update line RA13 to use the async keyword and return an HttpRequest object value.
B. Configure the Function app to use an App Service hosting plan. Enable the Always On setting of the hosting plan.
C. Update the function to be stateful by using Durable Functions to process the request payload.
D. Update the functionTimeout property of the host.json project file to 15 minutes.
Explanation:
Async operation tracking
The HTTP response mentioned previously is designed to help implement long-running HTTP async APIs with Durable Functions. This pattern is sometimes referred to as the polling consumer pattern. Both the client and server implementations of this pattern are built into the Durable Functions HTTP APIs. Function app
You perform local testing for the RequestUserApproval function. The following error message displays:
Timeout value of 00:10:00 exceeded by function: RequestUserApproval’
The same error message displays when you test the function in an Azure development environment when you run the following Kusto query: FunctionAppLogs | where FunctionName = = “RequestUserApproval”
References:
https://docs.microsoft.com/en-us/azure/azure-functions/durable/durable-functions-httpfeatures
Question # 14
You are developing a Java application that uses Cassandra to store key and value data. You plan to use a new Azure Cosmos DB resource and the Cassandra API in the application. You create an Azure Active Directory (Azure AD) group named Cosmos DB Creators to enable provisioning of Azure Cosmos accounts, databases, and containers. The Azure AD group must not be able to access the keys that are required to access the data. You need to restrict access to the Azure AD group. Which role-based access control should you use?
A. DocumentDB Accounts Contributor
B. Cosmos Backup Operator
C. Cosmos DB Operator
D. Cosmos DB Account Reader
Explanation:
Azure Cosmos DB now provides a new RBAC role, Cosmos DB Operator. This new rolelets you provision Azure Cosmos accounts, databases, and containers, but can’t accessthe keys that are required to access the data. This role is intended for use in scenarioswhere the ability to grant access to Azure Active Directory service principals to managedeployment operations for Cosmos DB is needed, including the account, database, andcontainers.Reference:https://azure.microsoft.com/en-us/updates/azure-cosmos-db-operator-role-for-role-basedaccess-control…
Question # 15
You develop a solution that uses Azure Virtual Machines (VMs). The VMs contain code that must access resources in an Azure resource group. You grant the VM access to the resource group in Resource Manager. You need to obtain an access token that uses the VMs system-assigned managed identity. Which two actions should you perform? Each correct answer presents part of the solution.
A. Use PowerShell on a remote machine to make a request to the local managed identity for Azure resources endpoint.
B. Use PowerShell on the VM to make a request to the local managed identity for Azureresources endpoint.
C. From the code on the VM. call Azure Resource Manager using an access token.
D. From the code on the VM. call Azure Resource Manager using a SAS token.
E. From the code on the VM. generate a user delegation SAS token.
Answer: B,C
Question # 16
You develop and add several functions to an Azure Function app that uses the latestruntime 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 respondingtoo 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
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.
Explanation: ]
You can create an Azure Function with TrackAvailability() that will run periodically according to the configuration given in the 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. D18912E1457D5D1DDCBD40AB3BF70D5D Reference: https://docs.microsoft.com/en-us/azure/azure-monitor/app/availability-azure-functions
Question # 17
You develop and deploy an Azure App Service web app named App1. You create a new Azure Key Vault named Vault 1. You import several API keys, passwords, certificates, and cryptographic keys into Vault1.You need to grant App1 access to Vault1 and automatically rotate credentials Credentials must not be stored in code. What should you do?
A. Enable App Service authentication for Appt. Assign a custom RBAC role to Vault1.
B. Add a TLS/SSL binding to App1.
C. Assign a managed identity to App1.
D. Upload a self-signed client certificate to Vault1. Update App1 to use the client certificate.
Question # 18
You are developing a web application that runs as an Azure Web App. The web application stores data in Azure SQL Database and stores files in an Azure Storage account. The web application makes HTTP requests to external services as part of normal operations. The web application is instrumented with Application Insights. The external services are OpenTelemetry compliant. You need to ensure that the customer ID of the signed in user is associated with all operations throughout the overall system. What should you do?
A. Create a new SpanContext with the TraceRags value set to the customer ID for the signed in user.
B. On the current SpanContext, set the Traceld to the customer ID for the signed in user.
C. Add the customer ID for the signed in user to the CorrelationContext in the web application.
D. Set the header Ocp-Apim-Trace to the customer ID for the signed in user.
Question # 19
An organization hosts web apps in Azure. The organization uses Azure Monitor You discover that configuration changes were made to some of the web apps. You need to identify the configuration changes. Which Azure Monitor log should you review?
A. AppServiceEnvironmentPlatformLogs
B. AppServiceApplogs
C. AppServiceAuditLogs
D. AppServiceConsoteLogs
Question # 20
You develop Azure solutions.You must connect to a No-SQL globally-distributed database by using the .NET API.You need to create an object to configure and execute requests in the database.Which code segment should you use?
A. new Container(EndpointUri, PrimaryKey);
B. new Database(Endpoint, PrimaryKey);
C. new CosmosClient(EndpointUri, PrimaryKey);
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