Cloud Concepts第 14 / 100 题
What distinguishes 'vertical scaling' from 'horizontal scaling'?
a.Vertical scaling adds more instances, while horizontal scaling adds CPU/RAM
b.Vertical scaling adds power (CPU/RAM) to an existing resource, while horizontal scaling adds more instances
c.They are identical terms
d.Vertical scaling only applies to storage
解析
Vertical scaling (scaling up) increases the capacity of a single machine by adding CPU, memory, or disk. Horizontal scaling (scaling out) adds more machines or instances to share the load. Cloud platforms support both, but scaling out is often more resilient.
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