4. AWS Architecture
设计的5个柱子，也就是5大考量点， Security， Reliability, Performance Efficiency, Cost optimization, Operational excellence
Security pillar
Reliability
Performance
Cost Optimization
Operational Excellence
Fault Tolorance
Web Hosting
比如你的website 在早上没有流量，在下午有peak, 你可以动态增减VM.
IAM - Identity and Access Management