IaaS
Infrastructure as a Service (VMs, networks, storage).
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Cloud Computing Basics
Core cloud terms for modern teams.
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PaaS
Platform as a Service for deploying apps.
SaaS
Software as a Service delivered over the internet.
Region
Geographic area with cloud data centers.
Availability zone
Isolated location within a region.
Scalability
Ability to handle growth in load.
Elasticity
Auto-adjusting resources with demand.
Load balancer
Distributes traffic across instances.
CDN
Content delivery network caching at the edge.
Object storage
Store blobs/files (e.g. S3-like).
Serverless
Run code without managing servers (functions).
Cold start
Latency when a serverless function starts.
Multi-tenancy
One system serving many customers securely.
Vendor lock-in
Hard to leave a cloud provider's ecosystem.