title: How does Amazon Auto scaling work in a DDos attack
body: <p>I have setup my auto scaling group to add a new EC2 instance when Elastic Beanstalk CPU usage above 60% for 5 mins. </p>
  
  <p>I get that but what happen if adding 1 instance is not enough and CPU usage is still above 60%, does auto scaling group add more EC2 instances until CPU usage goes below 60%?</p>