You need to ensure that when a backup occurs, the appli…

You are planning an application to run on Azure virtual machines (VMs). The VMs will be backed up using
Azure Backup.
The application maintains its state in three binary files stored on disk. Changes in application state require that
all three files be updated on disk. If only one or two of the files are updated on disk, work is lost and the system
is in an inconsistent state.
You need to ensure that when a backup occurs, the application’s data is always in a consistent state.
What should you do?

A.
Disable caching for the VMs virtual hard disks.

B.
Use Premium Storage for the VMs virtual hard disks.

C.
Implement the Volume Shadow Copy Service (VSS) API in the application.

D.
Store the application files on an Azure File Service network share.