What is a significant risk associated with using Spot Instances in cloud computing?

What is a significant risk associated with using Spot Instances in cloud computing?

• A. They guarantee immediate availability
• B. There is no guarantee of instance availability
• C. They are best for critical steady workloads
• D. They always cost more than On-Demand

Answer: (B)

Spot Instances use spare capacity from the cloud provider, so there is no guarantee of instance availability. The provider can reclaim this capacity at any time, which means your Spot Instance can be terminated or interrupted with little notice. This makes Spot Instances ideal for fault-tolerant or flexible workloads (like batch jobs or stateless processing) that can handle interruptions, and they’re often cheaper than On-Demand when capacity is available. However, they are not suitable for critical, steady workloads that require continuous uptime. The other statements miss the reality that availability is not guaranteed, that Spot Instances are generally used for non-critical tasks, and that they are not inherently more expensive than On-Demand.

Spot Instances use spare capacity from the cloud provider, so there is no guarantee of instance availability. The provider can reclaim this capacity at any time, which means your Spot Instance can be terminated or interrupted with little notice. This makes Spot Instances ideal for fault-tolerant or flexible workloads (like batch jobs or stateless processing) that can handle interruptions, and they’re often cheaper than On-Demand when capacity is available. However, they are not suitable for critical, steady workloads that require continuous uptime. The other statements miss the reality that availability is not guaranteed, that Spot Instances are generally used for non-critical tasks, and that they are not inherently more expensive than On-Demand.