A web application experiences unpredictable traffic spikes. The architecture uses an Application Load Balancer (ALB) and an Auto Scaling group of EC2 instances. Which TWO configurations will ensure the application scales efficiently and remains highly available? (Select TWO.)

Answer options:

Configure a target tracking scaling policy based on average CPU utilization.

Deploy the Auto Scaling group in a single Availability Zone.

Configure the Auto Scaling group to span multiple Availability Zones.

Use simple scaling policies with a 15-minute cooldown.

Attach an Elastic IP to each EC2 instance.

How to approach this question

Combine a dynamic scaling policy (Target Tracking) with a highly available deployment (Multi-AZ).

Full Answer

Configure target tracking scaling and deploy across multiple AZs.

To handle unpredictable traffic while maintaining high availability, the Auto Scaling group should span multiple Availability Zones. Target tracking scaling policies are the recommended way to scale based on metrics like CPU utilization.

Common mistakes

Selecting simple scaling policies, which are legacy and less responsive.

Question 20 All questions Question 22

Practice the full AWS SAA-C03 Practice Exam 3

65 questions · hints · full answers · grading

More questions from this exam

Q01A company stores sensitive documents in an Amazon S3 bucket. The security team requires that only...Easy Q02A large enterprise uses AWS Organizations to manage multiple accounts. The security team wants to...Medium Q03A company hosts a web application on Amazon EC2 instances behind an Application Load Balancer (AL...Easy Q04A company wants to continuously monitor its AWS accounts for malicious activity and unauthorized ...Medium Q05A company needs to encrypt data at rest in Amazon RDS and manage database credentials securely. T...Medium

View all 65 questions →