Chapter 6.10 - Timing Workloads with Spot Instances and Spot Fleets

Question 1

What are EC2 Spot Instances?

Answer 1

Amazon EC2 Spot Instances let you take advantage of unused EC2 capacity in the AWS Cloud.

Question 2

What is the financial advantage of using EC2 Spot Instances?

Answer 2

Spot Instances are available at up to a 90% discount compared to On-Demand prices.

Question 3

When should you use Spot Instances?

Answer 3

Useful for any type of computing where you don’t need persistent storage.

Stateless, fault-tolerant, or flexible applications

Applications such as big data, containerized workloads, CI/CD, high-performance computing (HPC), and other test and development workloads.

Question 4

How can you block Spot Instances from terminating?

Answer 4

You can block Spot Instances from terminating by using Spot Block.

Question 5

What is a Spot Fleet?

Answer 5

A Spot Fleet is a collection of Spot Instances and (optionally) On-Demand instances.