Exam AZ-305 topic 6 question 1 discussion

I am confident it's B. Azure Function. I had this question on the exam today, and I got 979, in the Design Infrastrcture Solutions, I was 100% correct, and this quesiton belongs to this catagory.

Azure function will need to be run from every region. This will need 2 functions. Logic app can be created centrally and executed for both regions as per given requirement. "The PowerShell script will run from a central location."

D. an App Service WebJob is wrong because App1 is on Linux System, Powershell cannot run on Linux

B: Geographical scaling: You can configure Azure Functions to handle tasks across regions (US East and EU West) without needing multiple instances or complex routing.

The question mentions "minimize cost" While Logic Apps can also schedule and execute tasks, they are generally more suited for orchestrating complex workflows. For this simple task, an Azure Function is more cost-effective.

you can run PowerShell scripts using Azure Logic Apps, although it requires integration with other Azure services because Logic Apps itself does not execute PowerShell scripts directly. One common approach is to use Azure Automation within your Logic App workflow, hence azure function is ideal choice, with less efforts

I thought it should be Azure function ( go with `B`) Because this requirement of maintenance task was not need any workflow logic to complete the task. They just need to execute the PowerShell script for copies the file that made by App1. That reason we could be simplify process with create the Azure function for completely objective. So, Azure function can access data in any storage account that we want by allow access policy.

zure Functions are ideal for running scheduled tasks, such as hourly PowerShell scripts, without the overhead of maintaining a virtual machine. They offer a serverless compute service that allows you to execute code on-demand without having to provision and manage infrastructure, thereby minimizing cost

The correct answer is B. an Azure Function. Azure Functions is a serverless compute service that lets you run event-triggered code without having to explicitly provision or manage infrastructure. In this case, you can create a timer-triggered function that runs your PowerShell script every hour. This approach is cost-effective because with Azure Functions, you only pay for the time your code runs. Option A, Azure Logic App, is more suited for workflows and would be an overkill for this scenario. Option C, an Azure Virtual Machine, would require you to manage the infrastructure and would be more costly. Option D, an App Service WebJob, could also work but it would require an App Service plan which might be more expensive than Azure Functions. Therefore, Azure Functions would be the most cost-effective solution for this scenario.

I would agree with B and below show why https://learn.microsoft.com/en-us/azure/azure-functions/functions-compare-logic-apps-ms-flow-webjobs

Azure Logic Apps does not have a native connector to directly run PowerShell scripts within its workflows

Final Answer: an Azure logic app

B. an Azure function

"Every hour, you will run a maintenance task by invoking a PowerShell script that copies files from all the App1 instances. " --> This shows that require coding for copying is taken care of by PowerShell script and now it just need to be scheduled and executed. Logic App does not need coding Azure Functions need coding. So ruling out Azure Functions. Answer is Logic App.

Azure Logic App. The key here is the term "every hour" "Every hour, you will run a maintenance task by invoking a PowerShell script that copies files from all the App1 instances. The PowerShell script will run from a central location." In Azure Logic App, you can schedule every hour.

For the App1 maintenance task, I would recommend using an **Azure Function** (Option B). Azure Functions is a serverless compute service that lets you run event-triggered code without having to explicitly provision or manage infrastructure. Given that the maintenance task needs to run every hour, this can be easily configured with a timer trigger in Azure Functions. This approach would minimize costs as you only pay for the compute time you consume - there is no charge when your code is not running. Plus, with Azure Functions, you can write your function code in PowerShell, which aligns with your requirement to run a PowerShell script.

Both Azure function and Logic App may solve the problem but in terms of cost, Logic App is more efficient. Azure Functions need to have VNet integration to connect to every resource. As it is in different regions, they need Dedicated plan with a VNet Gateway (with its charges). See the matrix in https://learn.microsoft.com/en-us/azure/azure-functions/functions-networking-options?tabs=azure-cli#virtual-network-integration