on 06-Dec-2019 (Fri)

Question

In AWS, before you can create an Auto Scaling Group (ASG), you need to first create a matching [...] [...] , which will have the AMI, instance type, Security Group, Role information to use with the EC2s that you will have in your ASG.

Answer

Launch Configuration

^^ You need the predefined Launch Configurations because the EC2s in the ASG are ephemiral (i.e. have to be created and destroyed on the fly)

Question

In AWS, when you want to setup an Auto Scaling Group (ASG), you must first create a matching Launch Configration, which defines the [...] , instance type, Security Group, Role information to use with the EC2s that will be created in the ASG.

Answer

AMI

Question

In AWS, when you create an Auto Scaling Group (ASG), for your scaling type you can have Manual Scaling (where you set an explicit number of EC2 instances for your ASG), or you can have [...] scaling, or you can scale dynamically with Scaling Policies

Answer

Scheduled

^^ Scheduled scaling allows you to scale to certain number of instances based on known periods of high demand (e.g. scale up on weekdays, down on weekends)
^^^ Scaling Policies allow you to scale based on metrics (i.e. you can scale up if average CPU threshold of your fleet of ASG instances goes above a certain value)

Question

In AWS, when you create an Auto Scaling Group (ASG), for your scaling type you can have Manual Scaling (where you set an explicit number of EC2 instances for your ASG), or you can have Scheduled scaling, or you can scale dynamically with [...] [...]

Answer

Scaling Policies

^^ Scheduled scaling allows you to scale to certain number of instances based on known periods of high demand (e.g. scale up on weekdays, down on weekends)
^^^ Dynamic scaling allows you to scale based on metrics (i.e. you can scale up if average CPU threshold of your fleet of ASG instances goes above a certain value)

Question

In AWS, when you setup your Auto Scaling Group (ASG), using a predefined Launch Configurations (that has the AMI, instance type, etc info on the EC2 instances to use in the ASG), you can create a central entry point to spread the traffic to your ASG instances by attaching a [...] [...] to your ASG

Answer

Load Balancer