AWS Certified Cloud Practitioner · Free Practice Question Medium
Question 43
A cloud practitioner needs to decrease application latency and increase performance for globally distributed users.
Which services can assist? (Select TWO.)
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A
Amazon S3
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B
Amazon AppStream 2.0
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C
Amazon ElastiCache
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D
Amazon ECS
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E
Amazon CloudFront
Reveal correct answers
Correct answers: A, E
Explanation
Amazon S3 is an object-based storage system. It can be used to store data such as files and images that need to be served. Optionally, an S3 bucket can be configured as a static website. Amazon CloudFront is a content delivery network (CDN) that caches content at Edge Locations around the world.
These two services can work together with an S3 bucket configured as an origin for the CloudFront distribution. Users around the world will then be able to pull the content from the local Edge Location with lower latency and better performance.

CORRECT: "Amazon S3" is a correct answer.
CORRECT: "Amazon CloudFront" is also a correct answer.
INCORRECT: "Amazon ECS" is incorrect. The Elastic Container Service (ECS) is used for running Docker containers on AWS. This is not going to help with reducing latency or increasing performance for global users.
INCORRECT: "Amazon AppStream 2.0" is incorrect. This is an application streaming service for streaming applications to computers. It is unsuitable for these requirements.
INCORRECT: "Amazon ElastiCache" is incorrect. ElastiCache caches data from a database in-memory. It is unsuitable for these requirements.
References:
https://aws.amazon.com/cloudfront/
Save time with our AWS cheat sheets:
https://digitalcloud.training/aws-content-delivery-and-dns-services/
Discussion
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