A company is deploying a third-party unit testing solution that is delivered as an Amazon EC2 Amazon Machine Image (AMI). All system configuration data is stored in Amazon DynamoDB. The testing…

Question

Options

• ADefine an Amazon EC2 Auto Scaling group by using a launch configuration.
• BDefine an Amazon EC2 Auto Scaling group by using a launch template.
• CDefine two Amazon EC2 Auto Scaling groups by using launch configurations.
• DDefine two Amazon EC2 Auto Scaling groups by using launch templates.

• A
  8% (2)
• B
  71% (17)
• C
  17% (4)
• D
  4% (1)

Explanation

AWS actually encourages a mixture of On-Demand & Spot Instances within a single ASG. "You can launch and automatically scale a fleet of On-Demand Instances and Spot Instances within a single Auto Scaling group. In addition to receiving discounts for using Spot Instances, you can use Reserved Instances or a Savings Plan to receive discounted rates of the regular On- Demand Instance pricing. All of these factors combined help you to optimize your cost savings for EC2 instances and help you get the desired scale and performance for your application." "Although you can use one instance type, it's a best practice to use multiple instance types. This way, Amazon EC2 Auto Scaling can launch another instance type if there is insufficient instance capacity in your chosen Availability Zones." https://docs.aws.amazon.com/autoscaling/ec2/userguide/ec2-auto-scaling-mixed-instances-

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