Question #886
Which AWS value proposition describes the capability to automatically adjust resource capacity in response to changing application demands?
High availability
Resource elasticity
Automated scaling
Pay-as-you-go pricing
Explanation
The correct answer is B. Resource elasticity. AWS defines elasticity as the ability to automatically adjust resource capacity dynamically to meet changing application demands. This ensures applications have the right resources at the right time, optimizing costs and performance.
Why other options are incorrect:
- A. High availability focuses on redundancy and fault tolerance, not scaling.
- C. Automated scaling is a specific feature (e.g., AWS Auto Scaling) that enables elasticity but is not the overarching value proposition.
- D. Pay-as-you-go pricing relates to cost structure, not resource adjustment.
Key Point: Elasticity is a core AWS value proposition, while automated scaling is the mechanism that enables it. Memorize elasticity as the broader concept for scaling-related questions.
Answer
The correct answer is: B