Certified Cloud Security Professional (CCSP)Cloud Concepts, Architecture and DesignMedium
A cloud architect is designing a system for a global e-commerce platform that experiences unpredictable traffic spikes during promotional events. The platform must maintain consistent performance and availability even when demand increases tenfold within minutes. Which cloud characteristic is most crucial for enabling this system to automatically adjust its resources to meet fluctuating demand?
- AOn-demand Self-service
- BResource Pooling
- CMeasured Service
- DRapid Elasticity
Show answer & explanationAnswer & explanation
Correct answer: D. Rapid Elasticity
Rapid elasticity is the ability of cloud computing resources to be quickly and automatically scaled up or down to meet fluctuating demand, which is essential for handling unpredictable traffic spikes while maintaining performance.
Why the other options are wrong
- A. On-demand self-service allows users to provision resources without human interaction, but doesn't specifically describe the automatic scaling under fluctuating load.
- B. Resource pooling refers to the provider's ability to serve multiple consumers from shared resources, not the automatic scaling of those resources for a single consumer.
- C. Measured service is about tracking resource usage for billing, not the dynamic scaling capability itself.
Rapid Elasticity
The ability of cloud computing resources to be scaled up or down quickly and automatically to meet varying demand.
- Enables dynamic resource allocation
- Supports sudden workload changes
- A key benefit for cost optimization and performance
Memory trick: REMOS: Rapidly Elastic Measured On-demand Self-service Resource Pooling Broad Network Access.