What is the main difference between vertical scaling and horizontal scaling?

Question

Accepted Answer

Vertical scaling adds more power to existing machines, horizontal scaling adds more machines

Answer

There is no functional difference between vertical scaling and horizontal scaling, with the choice between them coming down to terminology preference

Answer

Vertical scaling is only used for storage workloads while horizontal scaling is only used for compute workloads, regardless of the platform

Answer

Vertical scaling is always cheaper than horizontal scaling regardless of the workload pattern, since growing a single VM is more efficient

AZ-900 Question 171