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Question 120 - DVA-C02 discussion

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A company needs to distribute firmware updates to its customers around the world.

Which service will allow easy and secure control of the access to the downloads at the lowest cost?

A.
Use Amazon CloudFront with signed URLs for Amazon S3.
Answers
A.
Use Amazon CloudFront with signed URLs for Amazon S3.
B.
Create a dedicated Amazon CloudFront Distribution for each customer.
Answers
B.
Create a dedicated Amazon CloudFront Distribution for each customer.
C.
Use Amazon CloudFront with AWS Lambda@Edge.
Answers
C.
Use Amazon CloudFront with AWS Lambda@Edge.
D.
Use Amazon API Gateway and AWS Lambda to control access to an S3 bucket.
Answers
D.
Use Amazon API Gateway and AWS Lambda to control access to an S3 bucket.
Suggested answer: A

Explanation:

This solution allows easy and secure control of access to the downloads at the lowest cost because it uses a content delivery network (CDN) that can cache and distribute firmware updates to customers around the world, and uses a mechanism that can restrict access to specific files or versions. Amazon CloudFront is a CDN that can improve performance, availability, and security of web applications by delivering content from edge locations closer to customers. Amazon S3 is a storage service that can store firmware updates in buckets and objects. Signed URLs are URLs that include additional information, such as an expiration date and time, that give users temporary access to specific objects in S3 buckets. The developer can use CloudFront to serve firmware updates from S3 buckets and use signed URLs to control who can download them and for how long. Creating a dedicated CloudFront distribution for each customer will incur unnecessary costs and complexity. Using Amazon CloudFront with AWS Lambda@Edge will require additional programming overhead to implement custom logic at the edge locations. Using Amazon API Gateway and AWS Lambda to control access to an S3 bucket will also require additional programming overhead and may not provide optimal performance or availability.

Reference: [Serving Private Content through CloudFront], [Using CloudFront with Amazon S3]

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asked 16/09/2024
Andrew dela Cruz
35 questions
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