Intermediate CDN Caching

Test your Intermediate-level Caching Message Systems Cdn Caching skills in System Design Performance. This timed assessment evaluates your expertise in Information Technology.

Duration: 5 minutes

•40 questions

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40 questions remaining

Question 1 of 40Assessment

When a CDN receives a request for an expired resource that is still in its cache, what is the standard procedure used to minimize bandwidth?

A. The CDN deletes the file immediately and requests a full download from the origin server.

B. The CDN ignores the expiration and serves the stale content to the user without checking the origin.

C. The CDN sends a HEAD request to the origin to see if the file size has changed since the last fetch.

D. The CDN sends a conditional GET request with an If-Modified-Since or If-None-Match header.

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