Resize VMs, move VMs between resource groups, subscriptions and regions, manage disks

Workloads change after deployment, so administrators often resize virtual machines (VMs), relocate them and adjust their disks. Some of these operations happen while the VM runs, some need a restart, some need the VM deallocated, and each kind of move uses a different tool. Knowing which is which is what the exam tests, because choosing wrongly means unnecessary downtime or an operation that simply fails.