A company is comparing an application environment to be hosted on site versus a SaaS model of the same application. Which of the following SaaS-based licensing models should the administrator consider

Per-core licensing is an on-premises model that counts physical or virtual CPU cores on the server running the software, which is irrelevant in a SaaS context.

Per-socket licensing is an on-premises hardware-based model tied to physical CPU socket count on a server, not applicable to cloud-hosted SaaS.

Per-instance licensing is more common in IaaS and PaaS environments where customers deploy and manage individual virtual machine or container instances, not in SaaS.

In a SaaS model, the provider owns and manages all infrastructure, so licensing is abstracted away from hardware entirely and is instead tied to the number of named or concurrent users accessing the application. This per-user model allows organizations to scale licensing costs directly with headcount and is the standard commercial model for SaaS offerings like Microsoft 365 or Salesforce.