Which cloud model is owned and operated by a vendor and then sold, leased, or...

The Public cloud model is owned and operated by a vendor and offered to customers through sale, lease, or rental arrangements. Managing Cloud principles describe public cloud providers as entities that deliver shared infrastructure, platforms, or applications to multiple customers over the internet.

In this model, the cloud service provider manages the infrastructure, maintenance, and security of the environment, while customers consume services on a pay-as-you-go or subscription basis. Public clouds offer scalability, flexibility, and cost efficiency but provide less control over underlying systems.

Private clouds are dedicated to a single organization, hybrid clouds combine multiple models, and community clouds serve specific groups. Therefore, the public cloud model best fits the description.