Quiz - Chapter 13 - HA and Scaling Flashcards
Which of the following is NOT one of the W’s of scaling?
WHO
“Who” is not particularly relevant when scaling your architecture.
What setting would prevent a launch template from being used with EC2 Auto Scaling?
Including Network Information
Including this information would prevent the template from being used with Auto Scaling.
What AWS resource defines the configuration of instances created by EC2 Auto Scaling?
Launch Templates
Launch templates are the best way to define what your instances will look like.
What should you add to your RDS database to help with a read-heavy workload?
Read Replicas
Read replicas are the best way to handle a read-heavy workload
What tool can be used to notify you of scaling events?
SNS (Simple Notification Service)
SNS is usually the best way to notify someone that something is happening in AWS.
What setting in your Auto Scaling group determines how many instances you need online right now?
Desired Count
You’d use desired count to specify how many instances you need
How can you create a highly available application using EC2 Auto Scaling?
Define Multiple AZs in your Auto Scaling group
Auto Scaling will balance your EC2 count across the AZs you list
You would select _____ capacity for a DynamoDB table with a predictable workload.
Provisioned
Provisioned is the best option for a predictable workload
