AWS Certified Solutions Architect CloudFront and Content Delivery 2

Question 1

A company wants to invalidate specific files cached in CloudFront immediately after a deployment. What is the most efficient approach?

Accepted Answer

Create an invalidation request specifying the paths of the objects to remove from edge caches

Answer

Submitting a cache invalidation request with specific object paths (e.g., /images/logo.png or /*) forces CloudFront to remove those objects from all edge caches immediately.

Question 2

What is the key difference between CloudFront Signed URLs and Signed Cookies?

Accepted Answer

Signed URLs restrict access to a single file; Signed Cookies can grant access to multiple files

Answer

Signed URLs provide access to a single specific object, making them ideal for individual file downloads, while Signed Cookies can restrict access to multiple files matching a path pattern.

Question 3

A solutions architect wants to reduce load on the origin by shielding it from repeated cache-miss requests across multiple CloudFront edge locations. Which feature helps?

Accepted Answer

CloudFront Origin Shield

Answer

CloudFront Origin Shield adds an additional caching layer between regional edge caches and the origin, consolidating requests to reduce origin load and improve cache hit ratios.

Question 4

Which CloudFront Price Class setting would reduce costs by limiting distribution to only North America and Europe edge locations?

Accepted Answer

Price Class 100

Answer

Price Class 100 limits CloudFront delivery to the least expensive edge locations in North America and Europe, reducing costs by excluding higher-priced regions like Asia and South America.

Question 5

What happens when CloudFront is configured with an origin group containing a primary and secondary origin?

Accepted Answer

CloudFront automatically fails over to the secondary origin if the primary returns specific HTTP error codes

Answer

CloudFront origin groups provide failover by routing requests to a secondary origin when the primary origin returns configurable HTTP error status codes (e.g., 500, 502, 503, 504).

AWS Practice Test

AWS Practice Test

AWS Certified Solutions Architect CloudFront and Content Delivery 2