Explanation:
Box 1: Azure WebJobs
Compare Functions and WebJobs
Like Azure Functions, Azure App Service WebJobs with the WebJobs SDK is a code-first integration service that is designed for developers.
Comparison table
Azure Functions is built on the WebJobs SDK, so it shares many of the same event triggers and connections to other Azure services. Here are some factors to consider when you're choosing between Azure Functions and WebJobs with the WebJobs SDK:

Box 2: HTTP
Note: Choose the right integration and automation services in Azure
Compare the following Microsoft cloud services:
Microsoft Power Automate (was Microsoft Flow)
Azure Logic Apps
Azure Functions
Azure App Service WebJobs
All of these services can solve integration problems and automate business processes. They can all define input, actions, conditions, and output. You can run each of them on a schedule or trigger. Each service has unique advantages.
Outgoing Webhooks
Webhooks help Teams to integrate with external apps. With Outgoing Webhooks, you can send text messages from a channel to a web service. After configuring the Outgoing Webhooks, users can @mention Outgoing Webhook and send a message to a web service. The service responds within 10 seconds to the message with a text or a card.
Reference:
https://learn.microsoft.com/en-us/azure/azure-functions/functions-compare-logic-apps-ms-flow- webjobs

Explanation:
Creating an Always On availability group on VM1 would not be necessary, as you already have an availability group (AG1) in place on your on-premises SQL Server instances.
By adding a secondary replica to AG1, you can provide a copy of DB1 that can be used for the migration. This will allow you to minimize downtime on DB1 by performing the migration on the secondary replica, while the primary replica remains available for use.
While using Azure Migration can simplify the migration process, it may not necessarily minimize downtime. You may still need to plan for an appropriate maintenance window to complete the migration with minimal disruption to your application.

Reference:
https://www.ciraltos.com/automatically-start-and-stop-wvd-vms-with-azure-automation/
https://wvdlogix.net/windows-virtual-desktop-host-pool-automation-2
https://getnerdio.com/academy/how-to-optimize-windows-virtual-desktop-wvd-azure-costs-with-event-based-autoscaling-and-azure-vm-scale-sets/

To automate deployments in Azure while supporting parameters, versioning, and source control, you should use Azure DevOps with Bicep or Azure Resource Manager (ARM) templates as your infrastructure-as-code (IaC) tools. Azure DevOps provides a CI/CD platform, while Bicep or ARM templates define the infrastructure.
Reference:
https://learn.microsoft.com/en-us/azure/azure-resource-manager/templates/overview

Explanation:
Box 1: None
No data disk caching for the Log files.
Box 2: ReadOnly
Guidelines to optimize performance for your SQL Server on Azure Virtual Machines (VMs) include:
Set host caching to read-only for data file disks.
Set host caching to none for log file disks.
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/virtual-machines/windows/performance- guidelines-best-practices-storage