Box 1: Virtual machine scale sets
A virtual machine scale set allows you to deploy and manage a set of identical, auto-scaling virtual machines. You can scale the number of VMs in the scale set manually, or define rules to autoscale based on resource usage like CPU, memory demand, or network traffic. An Azure load balancer then distributes traffic to the
VM instances in the scale set.
You can deploy a scale set with a Windows Server image or Linux image such as RHEL, CentOS, Ubuntu, or SLES.
Box 2: ExpressRoute -
ExpressRoute is an Azure service that lets you create private connections between Microsoft datacenters and infrastructure that's on your premises or in a colocation facility. ExpressRoute connections do not go over the public Internet, and offer higher security, reliability, and speeds with lower latencies than typical connections over the Internet.
Incorrect Answers:
Not Web Apps:
Web App is a fully managed compute platform that is optimized for hosting websites and web applications. Customers can use App Service on Linux to host web apps natively on Linux for supported application stacks.
References:
https://docs.microsoft.com/en-us/azure/expressroute/expressroute-introduction https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/quick-create-portal
