What it is: The hardware profile of an EC2 instance (vCPU, memory, network, sometimes GPU).
What it’s for:
Match workload needs (compute-heavy, memory-heavy, bursty, etc.).
Control cost (bigger instance = higher cost).
Common categories (high level):
General purpose (balanced)
Compute optimized (CPU heavy)
Memory optimized (RAM heavy)
Storage optimized (IO heavy)
Accelerated computing (GPU)
Exam cues:
Hard words:
*profile* /ˈproʊfaɪl/: cấu hình/đặc tính
*bursty* /ˈbɝːsti/: tăng vọt theo lúc (không đều)
*optimized* /ˈɑːptəmaɪzd/: tối ưu