Week of Oct 27 – Nov 7 2025
| Concept | Definition | Example | Why It Matters |
|---|---|---|---|
| Cloud Computing | Delivery of computing services (servers, storage, databases, networking, software) over the internet (“the cloud”). | Google Cloud Platform, AWS, Azure | Reduces cost & increases scalability. |
| Service Models | Layers of shared responsibility between provider and customer. | IaaS – Compute Engine; PaaS – App Engine; SaaS – Gmail | Clarifies who manages what. |
| Infrastructure (Regions & Zones) | Physical locations and redundancy built for uptime. | us-central1-a, europe-west1-b |
Prevents single-point failures. |
| Shared Responsibility Model | Cloud provider secures the infrastructure, customer secures data & access. | Provider = patch servers; Customer = set IAM policies. | Defines accountability in security incidents. |
| IAM (Identity & Access Management) | Framework for controlling who can access what resources. | Roles = Viewer, Editor, Owner | Core of cloud security. |
| Encryption | Converts data into unreadable format until decrypted. | AES-256 at rest; TLS 1.3 in transit | Protects confidentiality. |
| Compliance & Governance | Meeting industry/legal standards for security. | ISO 27001, SOC 2, HIPAA | Builds customer trust. |