Implement Azure App Service web apps

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Questions and Answers

Which operating systems does Azure App Service support?

  • Linux only
  • Windows only
  • Both Windows and Linux (correct)
  • Mac OS

What is the purpose of deployment slots in Azure App Service?

  • To provide continuous integration and deployment support
  • To have separate environments for testing and production (correct)
  • To deploy web apps on Linux
  • To scale up/down the resources of the underlying machine

What are the supported languages and frameworks for Azure App Service on Linux?

  • Java and .NET
  • Node.js only
  • Python and Ruby
  • All language specific built-in images (correct)

Which types of applications can be hosted on Azure App Service?

<p>All of the above (D)</p> Signup and view all the answers

What resources can be scaled up/down in Azure App Service?

<p>All of the above (D)</p> Signup and view all the answers

Which sources can be used for continuous integration/deployment in Azure App Service?

<p>All of the above (D)</p> Signup and view all the answers

What is the purpose of scaling out/in in Azure App Service?

<p>To increase or decrease the number of machine instances (D)</p> Signup and view all the answers

What is the benefit of using deployment slots in Azure App Service?

<p>To swap content and configurations between different slots (D)</p> Signup and view all the answers

Which pricing tier is not supported for App Service on Linux?

<p>Shared (A)</p> Signup and view all the answers

Which option is recommended for apps that require heavy read-only access to content files?

<p>Deploying with a custom container (D)</p> Signup and view all the answers

What command can be used in the Cloud Shell to retrieve the current list of supported languages and frameworks for App Service on Linux?

<p>az webapp list-runtimes --os-type linux (D)</p> Signup and view all the answers

Which of the following best describes an App Service plan in Azure?

<p>A set of compute resources for multiple apps to run on (D)</p> Signup and view all the answers

How can you improve the performance of an app in Azure App Service when it is running in the same plan with other apps?

<p>Move the app into a separate App Service plan (C)</p> Signup and view all the answers

Which of the following determines the compute resources for a web app in Azure App Service?

<p>App Service plan (C)</p> Signup and view all the answers

Which pricing tier in Azure App Service allows apps to run on the same Azure VM as other apps, with CPU quotas and no scale-out capability?

<p>Shared (A)</p> Signup and view all the answers

Which pricing tier in Azure App Service provides network isolation on top of compute isolation for your apps?

<p>Isolated (D)</p> Signup and view all the answers

Which Azure hosting plans are intended to be used only for development and testing purposes?

<p>App Service Free and Shared (preview) hosting plans (D)</p> Signup and view all the answers

Which tier(s) allow an app to scale out and run on multiple VM instances?

<p>Basic and Standard tiers (B)</p> Signup and view all the answers

What is the purpose of scaling up/down an App Service plan?

<p>To scale the app independently from other apps in the same plan (B)</p> Signup and view all the answers

When should you consider isolating your app into a new App Service plan?

<p>All of the above (D)</p> Signup and view all the answers

Which deployment method in Azure App Service allows you to push your code to an Azure Web App directly from GitHub?

<p>Azure DevOps Services (D)</p> Signup and view all the answers

Which deployment method in Azure App Service allows you to send a ZIP of your application files using curl or a similar HTTP utility?

<p>Zip deploy (B)</p> Signup and view all the answers

Which deployment method in Azure App Service allows you to use the az command-line interface to package and deploy your app, and can create a new App Service web app if it doesn't exist?

<p>CLI (A)</p> Signup and view all the answers

Which of the following is true about the authentication flow in App Service?

<p>The authentication flow is the same for all providers (D)</p> Signup and view all the answers

What is the purpose of the token store in App Service?

<p>To store tokens associated with users of web apps, APIs, or native mobile apps (A)</p> Signup and view all the answers

What can you find in your existing application logs if you encounter an unexpected authentication error?

<p>Authentication and authorization traces (B)</p> Signup and view all the answers

Which of the following is a benefit of using the built-in authentication feature in Azure App Service?

<p>You can save time and effort by providing out-of-the-box authentication with federated identity providers (D)</p> Signup and view all the answers

What is the role of the authentication and authorization module in Azure App Service?

<p>It enables authentication and authorization for your app by processing incoming HTTP requests (D)</p> Signup and view all the answers

Which of the following is true about the identity providers in Azure App Service?

<p>They handle the user identities and authentication flow for you (B)</p> Signup and view all the answers

What does the authentication and authorization module in App Service do?

<p>Handles user authentication and session management (A)</p> Signup and view all the answers

What is the purpose of the sign-in endpoint for an identity provider in App Service?

<p>Validation of authentication tokens (A)</p> Signup and view all the answers

Which of the following identity providers is NOT available by default in Azure App Service?

<p>LinkedIn (B)</p> Signup and view all the answers

What does the authentication and authorization module in Azure App Service do?

<p>Handles incoming HTTP requests (D)</p> Signup and view all the answers

How can the authentication and authorization module in Azure App Service be configured?

<p>Using Azure Resource Manager settings (B)</p> Signup and view all the answers

Which of the following is NOT a function of the authentication and authorization module in Azure App Service?

<p>Injects identity information into HTTP request headers (D)</p> Signup and view all the answers

What happens when the authentication and authorization module is enabled in Azure App Service?

<p>The module authenticates users and clients with the specified identity provider(s) (A)</p> Signup and view all the answers

What does the authentication and authorization module do with OAuth tokens issued by the configured identity provider(s)?

<p>Validates and stores the tokens (A)</p> Signup and view all the answers

Which of the following is NOT a benefit of using the built-in authentication feature in Azure App Service?

<p>It requires changes to your application code. (B)</p> Signup and view all the answers

Which of the following identity providers is available by default in Azure App Service?

<p>Facebook (A)</p> Signup and view all the answers

What does the authentication and authorization module do with authentication tokens from the configured identity provider(s)?

<p>It validates the authentication tokens. (B)</p> Signup and view all the answers

Which of the following is true about the token store in Azure App Service?

<p>The token store is a built-in repository of tokens associated with users of your web apps, APIs, or native mobile apps. (D)</p> Signup and view all the answers

What can you find in your existing application logs if you encounter an unexpected authentication error?

<p>Details about the authentication error (C)</p> Signup and view all the answers

What is the purpose of the authentication and authorization module in Azure App Service?

<p>To handle the authentication flow for your app (C)</p> Signup and view all the answers

Which of the following is NOT a step in the authentication flow for Azure App Service?

<p>Enable application logging (B)</p> Signup and view all the answers

What is the purpose of the token store in App Service?

<p>To store tokens associated with users (B)</p> Signup and view all the answers

How can you find all the details of an unexpected authentication error in App Service?

<p>By looking in the existing application logs (D)</p> Signup and view all the answers

Which App Service plan allows all apps to run on the same worker?

<p>Premium (D)</p> Signup and view all the answers

Which App Service plan uses a different VM type than the others?

<p>PremiumV2 (B)</p> Signup and view all the answers

Where can you find the outbound IP addresses currently used by your app in the Azure portal?

<p>Properties (C)</p> Signup and view all the answers

Which of the following deployment types hosts App Service plans directly in your Azure virtual network?

<p>App Service Environment (ASE) (B)</p> Signup and view all the answers

What are the roles that handle incoming HTTP or HTTPS requests in Azure App Service called?

<p>Front ends (D)</p> Signup and view all the answers

Why can't you connect the App Service network directly to your network in a multi-tenant App Service deployment?

<p>There are many different customers in the same App Service scale unit (B)</p> Signup and view all the answers

Which deployment types are available for Azure App Service?

<p>Single-tenant and multi-tenant (A)</p> Signup and view all the answers

What are the roles that handle incoming HTTP or HTTPS requests in Azure App Service called?

<p>Front ends (A)</p> Signup and view all the answers

Which features can be used to handle inbound and outbound network traffic in Azure App Service?

<p>Access Restrictions and Virtual Network Integration (A)</p> Signup and view all the answers

Which of the following App Service plans hosts customer workloads that are dedicated to only one App Service plan?

<p>Basic and higher plans (B)</p> Signup and view all the answers

Which VM type does the PremiumV3 plan use in Azure App Service?

<p>A different VM type than the PremiumV2 plan (A)</p> Signup and view all the answers

How can you find the outbound IP addresses currently used by your app in the Azure portal?

<p>Select Properties in your app's left-hand navigation (B)</p> Signup and view all the answers

Which Azure CLI command can be used to find all possible outbound IP addresses for your app, regardless of pricing tiers?

<p>az webapp show --resource-group --name --query possibleOutboundIpAddresses --output tsv (D)</p> Signup and view all the answers

Which deployment slots are available in Azure App Service?

<p>Both production and non-production slots (C)</p> Signup and view all the answers

What is the benefit of deploying your application to a non-production slot in Azure App Service?

<p>It allows you to swap content and configurations between slots (A)</p> Signup and view all the answers

Is there any additional cost associated with using deployment slots in Azure App Service?

<p>No, there is no extra charge for using deployment slots (A)</p> Signup and view all the answers

Which slot remains online while the source slot is being prepared and warmed up?

<p>The target slot (C)</p> Signup and view all the answers

When swapping slots, which slot should always be the target slot?

<p>The production slot (C)</p> Signup and view all the answers

Which settings change when you swap slots in Azure App Service?

<p>Some settings are swapped while others remain the same (B)</p> Signup and view all the answers

Which of the following settings are applied from the target slot to all instances of the source slot during a slot swap in Azure App Service?

<p>All of the above (D)</p> Signup and view all the answers

What triggers all instances in the source slot to restart during a slot swap in Azure App Service?

<p>HTTP request to the application root (C)</p> Signup and view all the answers

What happens if any instance fails to restart during a slot swap in Azure App Service?

<p>The swap operation stops and rolls back the changes (D)</p> Signup and view all the answers

Which page allows you to swap deployment slots in Azure App Service?

<p>Deployment slots page (A)</p> Signup and view all the answers

What should you do before swapping an app from a deployment slot into production in Azure App Service?

<p>Make sure that all settings in the source slot are configured exactly as you want to have them in production (B)</p> Signup and view all the answers

What does the 'Swap with preview' feature in Azure App Service allow you to do?

<p>Validate that the app runs with the swapped settings before swapping into production (D)</p> Signup and view all the answers

Which of the following is NOT a step in configuring auto swap in Azure App Service?

<p>Roll back and monitor a swap (A)</p> Signup and view all the answers

What configuration element in web.config is used to specify custom initialization actions for auto swap in Azure App Service?

<p>applicationInitialization (A)</p> Signup and view all the answers

Where can you find information on the swap operation and its suboperations or errors in Azure App Service?

<p>Activity log (D)</p> Signup and view all the answers

Which of the following is a use case for routing production traffic manually in App Service?

<p>To allow users to opt out of a beta app (B)</p> Signup and view all the answers

What happens to a client session after it is automatically routed to a specific slot in App Service?

<p>It is pinned to that slot for the life of the client session (B)</p> Signup and view all the answers

How can you determine which slot your session is pinned to in App Service?

<p>By checking the x-ms-routing-name cookie in your HTTP headers (C)</p> Signup and view all the answers

Which of the following is NOT a way to access the staging slot manually in Azure App Service?

<p>By setting the routing percentage to 0 (D)</p> Signup and view all the answers

What happens when the routing percentage is set to 0% in Azure App Service?

<p>The staging slot is inaccessible to the public (A)</p> Signup and view all the answers

What is the purpose of setting the routing rule value to 0% in Azure App Service?

<p>To hide the staging slot from the public (C)</p> Signup and view all the answers

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Study Notes

Azure App Service Overview

  • Supports multiple operating systems, including Windows and Linux.
  • Deployment slots enable testing and validation before pushing changes to production.

Supported Languages and Frameworks

  • Azure App Service on Linux supports languages like Node.js, Python, Java, PHP, and .NET Core.

Application Types

  • Supports various application types, including web apps, RESTful APIs, and mobile backends.

Scaling Features

  • Resources such as compute power, memory, and storage can be scaled up or down.
  • Scaling out refers to adding instances, while scaling in involves reducing instances.

Continuous Integration/Deployment

  • Supports continuous integration/deployment from sources like GitHub, Azure DevOps, and Bitbucket.

Pricing Tiers

  • The Basic pricing tier is not available for Linux App Service.
  • The Shared pricing tier allows multiple apps to run on the same VM without dedicated resources.

Networking Features

  • Recommended options for heavy read-only access include Azure Blob Storage or Azure CDN.
  • Pricing tiers and app plans impact app performance, with dedicated plans offering more resources.

Deployment Methods

  • Supports various deployment methods, including GitHub push, ZIP deployment via HTTP, and CLI packaging.
  • The authentication and authorization module allows for easier management of identity providers.

Authentication Flow

  • Includes a token store that caches tokens for session management.
  • Logs can provide information on authentication errors, facilitating debugging.

Isolation and Performance

  • Isolating an app into a new App Service plan is advisable when performance requirements differ significantly.
  • Premium pricing tiers provide compute and network isolation for better security and performance.

App Service Plans

  • The PremiumV3 plan employs the latest VM types for better responsiveness and scaling capabilities.
  • Multi-tenant App Service deployments can't connect directly to customer networks for security reasons.

Deployment Slots Management

  • Non-production slots offer testing environments without impacting production.
  • Slot swaps apply application settings from the target slot to the production environment effectively.

Routing and Session Management

  • Routing rules can be set for traffic to specific slots; if set to 0%, traffic is not routed to that slot.
  • Client sessions can be pinned to specific slots, influencing user experience based on app changes.

Error Handling

  • Detailed swap operation logs help track any issues that occur during deployments.
  • Proper preparation before swapping slots minimizes the risk of downtime or errors.

Special Features

  • 'Swap with preview' offers a way to inspect the target before finalizing the swap.
  • Auto-swap settings can execute initialization scripts specified within the web.config file.

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Related Documents

Explore Azure App Service.pdf

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