What allows running discounted EC2 instances when unused capacity is available?1 pointReserved instancesSpot instancesDedicated hostsLambda functions
Question
What allows running discounted EC2 instances when unused capacity is available?
- 1 point
- Reserved instances
- Spot instances
- Dedicated hosts
- Lambda functions
Solution
The option that allows running discounted EC2 instances when unused capacity is available is Spot instances.
Explanation:
Spot instances are a cost-effective way to utilize Amazon EC2 resources. They allow users to bid on spare Amazon EC2 computing capacity that is available at discounted prices compared to on-demand instance pricing. When the spot price (the market price that AWS determines for unused capacity) is lower than the user's maximum price, the instance runs. However, Spot instances can be interrupted by AWS if they need the capacity back, which is an important factor to consider depending on the application's requirements.
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