Microsoft Azure Fundamentals (AZ-900)Describe cloud conceptsMedium
A small business is experiencing inconsistent website traffic, with significant spikes during promotional campaigns. They need a cloud solution that can automatically adjust computing resources to match demand, without manual intervention, and then scale back down when traffic subsides. Which cloud characteristic is being described?
- ALow latency
- BFault tolerance
- CHigh availability
- DRapid elasticity
Show answer & explanationAnswer & explanation
Correct answer: D. Rapid elasticity
Rapid elasticity is the ability to quickly and automatically scale computing capabilities up or down to meet fluctuating demand. This perfectly matches the need for automatic adjustment to traffic spikes and scaling back down without manual intervention.
Why the other options are wrong
- A. Low latency is about minimizing delays, not dynamic resource adjustment.
- B. Fault tolerance is about resilience to failures, not scaling with fluctuating load.
- C. High availability ensures continuous uptime, but not automatic scaling based on demand.
Rapid Elasticity
A key characteristic of cloud computing that refers to the ability of cloud resources to be rapidly and elastically provisioned and de-provisioned, often automatically, to scale up or down to meet fluctuating demand.
- Automatic scaling of resources
- Responds to demand fluctuations
- No manual intervention required
Memory trick: RAPID ELASTICITY is like a rubber band, stretching and snapping back instantly.