Download Developing Solutions for Microsoft Azure.AZ-204.VCEplus.2021-10-07.94q.vcex

Scenario: Shipping websiteUse Azure Content Delivery Network (CDN) and ensure maximum performance for dynamic content while minimizing latency and costs. Tier: StandardProfile: AkamaiOptimization: Dynamic site accelerationDynamic site acceleration (DSA) is available for Azure CDN Standard from Akamai, Azure CDN Standard from Verizon, and Azure CDN Premium from Verizon profiles. DSA includes various techniques that benefit the latency and performance of dynamic content. Techniques include route and network optimization, TCP optimization, and more. You can use this optimization to accelerate a web app that includes numerous responses that aren't cacheable. Examples are search results, checkout transactions, or real-time data. You can continue to use core Azure CDN caching capabilities for static data. Reference:https://docs.microsoft.com/en-us/azure/cdn/cdn-optimization-overview

Box 1: Azure BackupThe VM is critical and has not been backed up in the past. The VM must enable a quick restore from a 7-day snapshot to include in-place restore of disks in case of failure. In-Place restore of disks in IaaS VMs is a feature of Azure Backup. Performance: Accelerated NetworkingScenario: The VM shows high network latency, jitter, and high CPU utilization. Box 2: Accelerated networkingThe VM shows high network latency, jitter, and high CPU utilization. Accelerated networking enables single root I/O virtualization (SR-IOV) to a VM, greatly improving its networking performance. This high-performance path bypasses the host from the datapath, reducing latency, jitter, and CPU utilization, for use with the most demanding network workloads on supported VM types. Reference:https://azure.microsoft.com/en-us/blog/an-easy-way-to-bring-back-your-azure-vm-with-in-place-restore/

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"  Reference: https://docs.microsoft.com/en-us/azure/azure-functions/durable/durable-functions-http-features 

D: The ability to specify a host override is defined in the HTTP settings and can be applied to any back-end pool during rule creation. The ability to derive the host name from the IP or FQDN of the back-end pool members. HTTP settings also provide an option to dynamically pick the host name from a back-end pool member's FQDN if configured with the option to derive host name from an individual back-end pool member.  A (not C): SSL termination and end to end SSL with multi-tenant services. In case of end to end SSL, trusted Azure services such as Azure App service web apps do not require whitelisting the backends in the application gateway.  Therefore, there is no need to add any authentication certificates.        Reference: https://docs.microsoft.com/en-us/azure/application-gateway/application-gateway-web-app-overview

You need to catch the triggered event, so move the photo processing to an Azure Function triggered from the blob upload  Note: Azure Storage events allow applications to react to events. Common Blob storage event scenarios include image or video processing, search indexing, or any file-oriented workflow.  Events are pushed using Azure Event Grid to subscribers such as Azure Functions, Azure Logic Apps, or even to your own http listener.  Note: Only storage accounts of kind StorageV2 (general purpose v2) and BlobStorage support event integration. Storage (general purpose v1) does not support integration with Event Grid.  Reference: https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-event-overview

Specify custom warm-up.  Some apps might require custom warm-up actions before the swap. The applicationInitialization configuration element in web.config lets you specify custom initialization actions. The swap operation waits for this custom warm-up to finish before swapping with the target slot. Here's a sample web.config fragment.  <system.webServer>      <applicationInitialization>          <add initializationPage="/" hostName="[app hostname]" />          <add initializationPage="/Home/About" hostName="[app hostname]" />      </applicationInitialization>  </system.webServer>  Reference: https://docs.microsoft.com/en-us/azure/app-service/deploy-staging-slots#troubleshoot-swaps   

Instead update the web.config file to include the applicationInitialization configuration element. Specify custom initialization actions to run the scripts.  Note: Some apps might require custom warm-up actions before the swap. The applicationInitialization configuration element in web.config lets you specify custom initialization actions. The swap operation waits for this custom warm-up to finish before swapping with the target slot. Here's a sample web.config fragment.  <system.webServer>      <applicationInitialization>          <add initializationPage="/" hostName="[app hostname]" />          <add initializationPage="/Home/About" hostName="[app hostname]" />      </applicationInitialization>  </system.webServer>  Reference: https://docs.microsoft.com/en-us/azure/app-service/deploy-staging-slots#troubleshoot-swaps

Not necessary to convert the account, instead move photo processing to an Azure Function triggered from the blob upload..  Azure Storage events allow applications to react to events. Common Blob storage event scenarios include image or video processing, search indexing, or any fileoriented workflow.  Note: Only storage accounts of kind StorageV2 (general purpose v2) and BlobStorage support event integration. Storage (general purpose v1) does not support integration with Event Grid.  Reference: https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-event-overview

Windows Azure Web Sites (WAWS) offers 3 modes:  Standard, Free, and Shared. Standard mode carries an enterprise-grade SLA (Service Level Agreement) of 99.9% monthly, even for sites with just one instance.  Standard mode runs on dedicated instances, making it different from the other ways to buy Windows Azure Web Sites.  Incorrect Answers: B: Shared and Free modes do not offer the scaling flexibility of Standard, and they have some important limits. Shared mode, just as the name states, also uses shared Compute resources, and also has a CPU limit. So, while neither Free nor Shared is likely to be the best choice for your production environment due to these limits.

Instead pass the HTTP trigger payload into an Azure Service Bus queue to be processed by a queue trigger function and return an immediate HTTP success response.  Note: Large, long-running functions can cause unexpected timeout issues. General best practices include:  Whenever possible, refactor large functions into smaller function sets that work together and return responses fast. For example, a webhook or HTTP trigger function might require an acknowledgment response within a certain time limit; it's common for webhooks to require an immediate response. You can pass the HTTP trigger payload into a queue to be processed by a queue trigger function. This approach lets you defer the actual work and return an immediate response.  Reference: https://docs.microsoft.com/en-us/azure/azure-functions/functions-best-practices