[&] Which of the following resources can be used as the "front end" of a virtual machine scale set? (Select all that apply)
- Virtual machine running a load balancing appliance
- Azure application gateway -- Correct
- Azure Kubernetes service
- Azure app service
- Azure load balancer -- Correct

[&] You have a workload hosted on a virtual machine scale set that may scale up to 200 instances.  You have autoscale set to scale out by one instance when the processor load exceeds 80%.  You need to ensure that new instances are configured with custom settings and software while minimizing the time it takes for a new instance to be available.  What should you do to configure a new instance?
- Create an automation account that serves as a DSC server.  Import a configuration that installs and configures all software necessary for the workload. Onboard the scale set for Azure automation state management 
- Create an administrative alert that sends an e-mail to your system administrators whenever a new instance of the scale set is provisioned.  Have the administrator connect to the new instance via SSH and install software and configure the new instance
- Create an image with the software and configuration necessary for the workload.  Use the custom image for the scale set. -- Correct
- Create a custom script that loads the software and configuration necessary for the workload.  Deploy a custom script extension to inject the script into each new instance of the scale set.