Recall core cloud tradeoffs around service models, scaling, and cost controls without re-reading a long guide.
IaaS vs PaaS: what changes first? Move up the stack unless the workload truly needs the lower-layer control. What is the fastest test for whether a cost optimization is worth doing? Ask whether it removes waste or aligns spend with value without breaking the workload's real requirement. Cheaper is not automatically better if it weakens a business-critical target. Vertical vs horizontal scaling: what is the first distinction? The bottleneck shape, not taste, determines the stronger move. What question should you ask before accepting any cloud shortcut? Which failure, exposure, or ongoing cost am I accepting by taking this shortcut, and…
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