AWS Solutions Architect Associate Resilientarchitectures — practice questions

Explore 2 free Resilientarchitectures questions in AWS Solutions Architect Associate Cloudcomputing. Open each question or exercise to read its content, reference answers and available explanation.

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Resilientarchitectures questions and exercises with answers

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Horizontal scaling on AWS is best characterised as:Read the answer and worked solution →Which AWS service caches static and dynamic content at edge locations close to end users?Read the answer and worked solution →

Worked practice questions

Horizontal scaling on AWS is best characterised as:

Migrating the workload to S3 Glacier
Adding more identical instances behind a load balancer to share traffic
Switching all servers to a single AZ for simplicity
Increasing the CPU and memory of a single existing EC2 instance

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Correct answer: B. Adding more identical instances behind a load balancer to share traffic

Scale-out adds instances vertical scale (scale-up) grows a single instance. Glacier is archival storage consolidating into one AZ removes resilience.

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Which AWS service caches static and dynamic content at edge locations close to end users?

Amazon CloudFront (CDN)
AWS Outposts
Amazon Aurora clusters
Amazon EBS volumes

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Correct answer: A. Amazon CloudFront (CDN)

CloudFront is AWS's CDN — caches at hundreds of edge POPs. EBS is per-VM block storage, Aurora is a managed DB, Outposts is on-prem AWS hardware.