Spot instances are ideally designed for which purpose below?
Running database instances that can scale up and down based on a specific workload.
Running long duration and highly transactional applications.
For building distributed fault tolerant databases under a tight deadline.
Taking advantage of excess EC2 capacity at prices below standard on-demand rates, for short duration jobs.
Explanations:
Spot instances are not ideal for workloads that need high availability or consistent scaling, such as running database instances that require uptime and stable performance. Spot instances can be terminated unexpectedly.
Spot instances are unsuitable for long-duration or highly transactional applications due to the risk of interruptions, which can lead to inconsistent performance or downtime.
Spot instances are not designed for fault-tolerant systems that need guaranteed uptime. They may be interrupted, making them unsuitable for building fault-tolerant databases.
Spot instances are ideal for short-duration, non-critical jobs that can tolerate interruptions. They allow you to take advantage of unused EC2 capacity at a lower cost, making them perfect for batch jobs, data analysis, or workloads that don’t require consistent uptime.
I figure that the answer is:
Taking advantage of excess EC2 capacity at prices below standard on-demand rates, for short duration jobs.