AWS Certified Solutions Architect CloudFront and Content Delivery 4

Question 1

A company wants to restrict CloudFront content delivery so that only users in specific countries can access their streaming videos. Which CloudFront feature should they use?

Accepted Answer

Geographic Restrictions (Geo Blocking)

Answer

CloudFront Geographic Restrictions (Geo Blocking) allows you to whitelist or blacklist specific countries to control content access.

Question 2

An application uses CloudFront to serve dynamic API responses. The team notices that personalized API responses are being cached and served to wrong users. What is the BEST solution?

Accepted Answer

Configure Cache Behavior to forward the Authorization header and use it as a cache key

Answer

Forwarding the Authorization header and including it in the cache key ensures each user's requests are cached and served separately.

Question 3

A media company needs to deliver large video files globally with the lowest possible latency. They also need to accelerate uploads from users worldwide. Which AWS service combination is BEST?

Accepted Answer

CloudFront for downloads only, S3 Transfer Acceleration for uploads

Answer

CloudFront is optimized for downloads/GET requests while S3 Transfer Acceleration uses CloudFront's edge network to accelerate uploads to S3.

Question 4

A CloudFront distribution is configured with an S3 origin. After updating objects in S3, users still receive old content. What is the MOST cost-effective way to immediately serve updated content?

Accepted Answer

Create an invalidation for the specific file paths

Answer

Creating an invalidation removes specified objects from CloudFront edge caches immediately, forcing the next request to fetch fresh content from the origin.

Question 5

Which CloudFront feature allows you to run code at edge locations to modify HTTP requests and responses without managing servers?

Accepted Answer

CloudFront Functions and Lambda@Edge

Answer

CloudFront Functions (for lightweight JS) and Lambda@Edge (for more complex Node.js/Python code) both enable serverless code execution at edge locations.

AWS Practice Test

AWS Practice Test

AWS Certified Solutions Architect CloudFront and Content Delivery 4