AWS Solutions Architect Deployment & Scalability 2

Question 1

An application experiences unpredictable traffic spikes. Which Auto Scaling policy responds fastest to sudden load increases?

Accepted Answer

Target tracking scaling

Answer

Target tracking scaling continuously adjusts capacity to maintain a specified metric (e.g., 50% CPU), reacting faster than simple or step policies.

Question 2

A company wants zero-downtime deployments on ECS Fargate. Which deployment strategy should they use?

Accepted Answer

Blue/green via CodeDeploy

Answer

ECS blue/green deployments via CodeDeploy shift traffic from the old (blue) task set to the new (green) task set with automatic rollback on failure.

Question 3

You need to deploy a stateful application across multiple AZs with persistent storage per instance. Which service is best suited?

Accepted Answer

Amazon EC2 Auto Scaling with EBS

Answer

EC2 Auto Scaling with EBS volumes provides per-instance persistent block storage, essential for stateful applications across multiple AZs.

Question 4

Which CloudFormation feature allows you to deploy the same template across multiple accounts and regions simultaneously?

Accepted Answer

CloudFormation StackSets

Answer

CloudFormation StackSets extend stack deployment across multiple AWS accounts and regions with a single operation.

Question 5

An ALB target group has instances in two AZs. One AZ has 2 instances and the other has 8. What feature ensures equal traffic distribution across AZs?

Accepted Answer

Cross-zone load balancing

Answer

Cross-zone load balancing distributes requests evenly across all registered targets in all enabled AZs, regardless of instance count per AZ.

AWS Practice Test