A company wants their cloud applications to continue operating even when hardware components fail, and to maintain consistent, forecastable costs. Which benefit of cloud computing best addresses these requirements?
Reliability
Scalability
High availability
Elasticity
Reliability is the cloud benefit that ensures applications remain operational and can recover from failures, such as hardware failures. This is often achieved through redundancy and fault tolerance. Predictability, which is closely associated with reliability, includes the ability to forecast costs and performance.
Scalability relates to handling increased workloads by adding resources but does not directly address fault tolerance or cost predictability.
Elasticity involves automatic scaling based on demand, which may affect cost predictability due to fluctuations.
High availability is a component of reliability that focuses on maximizing uptime and ensuring services are accessible by being resilient to failures. However, it does not, by itself, address the requirement for consistent and forecastable costs.
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