Differences between an on-premises and Azure implementation

Interesting comparison from an official Azure documentation article -

	On-premises implementation	Azure implementation
Networking	LAN/WAN	SDN (software-defined networking)
Security group	IP/port restriction tools	Network Security Group (NSG)
Resilience	MTBF (mean time between failures)	MTTR (mean time to recovery)
Planned maintenance	Patching/upgrades	Availability sets (patching/upgrades managed by Azure)
Resource	Dedicated	Shared with other clients
Regions	Datacenters	Region pairs
Storage	SAN/physical disks	Azure-managed storage
Scale	Vertical scale	Horizontal scale