Exam AZ-204 Developing Solutions for Microsoft Azure Exam

Candidates for this exam are cloud developers who participate in all phases of development from requirements definition and design, to development and deployment, and maintenance. They partner with cloud DBAs, cloud administrators, and clients to implement solutions.

Candidates should be proficient in Azure SDKs, data storage options, data connections, APIs, app authentication and authorization, compute and container deployment, debugging, performance tuning, and monitoring.

Candidates must have 1-2 years professional development experience and experience with Microsoft Azure. They must be able to program in an Azure Supported Language.

Beta exams are not scored immediately because we are gathering data on the quality of the questions and the exam. Learn more about the value and importance of beta exams.

Part of the requirements for: Microsoft Certified: Azure Developer Associate

Related exams: none

Important: See details

Languages: English

Retirement date: none
This exam measures your ability to accomplish the following technical tasks: develop Azure compute solutions; develop for Azure storage; implement Azure security; monitor, troubleshoot, and optimize Azure solutions; and connect to and consume Azure services and third-party services.

Skills Measured
NOTE: The bullets that appear below each of the skills measured are intended to illustrate how we are assessing that skill. This list is not definitive or exhaustive.
NOTE: In most cases, exams do NOT cover preview features, and some features will only be added to an exam when they are GA (General Availability).
Develop Azure compute solutions (25-30%)
Implement IaaS solutions
• provision VMs
• create ARM templates
• create container images for solutions
• publish an image to the Azure Container Registry
• run containers by using Azure Container Instance

Create Azure App Service Web Apps
• create an Azure App Service Web App
• enable diagnostics logging
• deploy code to a web app
• configure web app settings
• implement autoscaling rules (schedule, operational/system metrics)

Implement Azure functions
• implement input and output bindings for a function
• implement function triggers by using data operations, timers, and webhooks
• implement Azure Durable Functions

Develop for Azure storage (10-15%)
Develop solutions that use Cosmos DB storage
• select the appropriate API for your solution
• implement partitioning schemes
• interact with data using the appropriate SDK
• set the appropriate consistency level for operations
• create Cosmos DB containers

Develop solutions that use blob storage
• move items in Blob storage between storage accounts or containers
• set and retrieve properties and metadata
• interact with data using the appropriate SDK
• implement data archiving and retention

Implement Azure security (15-20%)
Implement user authentication and authorization
• implement OAuth2 authentication
• create and implement shared access signatures
• register apps and use Azure Active Directory to authenticate users

Implement secure cloud solutions
• secure app configuration data by using the App Configuration and KeyVault API
• manage keys, secrets, and certificates by using the KeyVault API
• implement Managed Identities for Azure resources

Monitor, troubleshoot, and optimize Azure solutions (10-15%)
Integrate caching and content delivery within solutions
• develop code to implement CDN’s in solutions
• configure cache and expiration policies
• store and retrieve data in Azure Redis cache

Instrument solutions to support monitoring and logging
• configure instrumentation in an app or service by using Application Insights
• analyze and troubleshoot solutions by using Azure Monitor
• implement Application Insights Web Test and Alerts
• implement code that handles transient faults

Connect to and consume Azure services and third-party services (25-30%)
Develop an App Service Logic App
• create a Logic App
• create a custom connector for Logic Apps
• create a custom template for Logic Apps

Implement API management
• create an APIM instance
• configure authentication for APIs
• define policies for APIs

Develop event-based solutions
Note: Creating event models is in scope

• implement solutions that use Azure Event Grid
• implement solutions that use Azure Notification Hubs
• implement solutions that use Azure Event Hub

Develop message-based solutions
• implement solutions that use Azure Service Bus
• implement solutions that use Azure Queue Storage queues

QUESTION 1
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 develop a software as a service (SaaS) offering to manage photographs. Users upload photos to a web
service which then stores the photos in Azure Storage Blob storage. The storage account type is Generalpurpose V2.
When photos are uploaded, they must be processed to produce and save a mobile-friendly version of the
image. The process to produce a mobile-friendly version of the image must start in less than one minute.
You need to design the process that starts the photo processing.
Solution: Convert the Azure Storage account to a BlockBlobStorage storage account.

Does the solution meet the goal?

A. Yes
B. No

Correct Answer: B

QUESTION 2
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 develop a software as a service (SaaS) offering to manage photographs. Users upload photos to a web
service which then stores the photos in Azure Storage Blob storage. The storage account type is Generalpurpose V2.
When photos are uploaded, they must be processed to produce and save a mobile-friendly version of the
image. The process to produce a mobile-friendly version of the image must start in less than one minute.
You need to design the process that starts the photo processing.
Solution: Move photo processing to an Azure Function triggered from the blob upload.

Does the solution meet the goal?

A. Yes
B. No

Correct Answer: A

QUESTION 3
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


QUESTION 4
You are developing a web app that is protected by Azure Web Application Firewall (WAF). All traffic to the web
app is routed through an Azure Application Gateway instance that is used by multiple web apps. The web app
address is contoso.azurewebsites.net.
All traffic must be secured with SSL. The Azure Application Gateway instance is used by multiple web apps.
You need to configure the Azure Application Gateway for the app.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A. In the Azure Application Gateway’s HTTP setting, enable the Use for App service setting.
B. Convert the web app to run in an Azure App service environment (ASE).
C. Add an authentication certificate for contoso.azurewebsites.net to the Azure Application gateway.
D. In the Azure Application Gateway’s HTTP setting, set the value of the Override backend path option to contoso22.azurewebsites.net.

Correct Answer: AD

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