Which cloud concept describes the automatic, on-demand expansion or contraction of compute and storage resources whenever workload levels rise or fall?
High availability
Scalability
Multitenancy
Elasticity
Elasticity refers to the real-time, automated ability of a cloud environment to provision additional resources (such as CPU, memory, and storage) during demand spikes and to release those resources when demand subsides. This ensures applications maintain performance while avoiding the cost of overprovisioning. Scalability concerns planned, long-term growth, multitenancy describes sharing underlying infrastructure among customers, and high availability focuses on minimizing downtime-none of which inherently provide automatic, real-time resource adjustment.
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