Review Questions

1. Which of the following is not one of the pillars of the Well-Architected Framework?

   1. Performance efficiency
   2. Reliability
   3. Resiliency
   4. Security
   5. Cost optimization

2. Which of the following are examples of applying the principles of the security pillar of the Well-Architected Framework? (Select TWO.)

   1. Granting each AWS user their own IAM username and password
   2. Creating a security group rule to deny access to unused ports
   3. Deleting an empty S3 bucket
   4. Enabling S3 versioning

3. You’re hosting a web application on two EC2 instances in an Auto Scaling group. The performance of the application is consistently acceptable. Which of the following can help maintain or improve performance efficiency? (Select TWO.)

   1. Monitoring for unauthorized access
   2. Doubling the number of instances in the Auto Scaling group
   3. Implementing policies to prevent the accidental termination of EC2 instances in the same Auto Scaling group
   4. Using CloudFront

4. Which of the following can help achieve...