Cloud Deployment Models
Private Cloud
Exclusive to one organization; can be on‑prem or hosted.
Public Cloud
Owned and operated by a cloud provider; multi‑tenant.
Hybrid Cloud
Combines public and private cloud with data/application portability.
Cloud Service Models
Infrastructure‑as‑a‑Service (IaaS)
Cloud provider hosts compute, storage, networking, and virtualization. You manage OS, apps, and data.
Platform‑as‑a‑Service (PaaS)
Provider manages OS, middleware, and runtime. Developers focus on building applications.
Software‑as‑a‑Service (SaaS)
Provider manages everything. Users access the application via browser.