AZ-204 Certification Practice Question #185

Question

You are developing an Azure App Service hosted ASP.NET Core web app to deliver video-on-demand streaming media. You enable an Azure Content Delivery
Network (CDN) Standard for the web endpoint. Customer videos are downloaded from the web app by using the following example URL: http://www.contoso.com/ content.mp4?quality=1.
All media content must expire from the cache after one hour. Customer videos with varying quality must be delivered to the closest regional point of presence
(POP) node.
You need to configure Azure CDN caching rules.
Which options should you use? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:

Accepted Answer

Three requirements drive three settings: (1) "All media content must expire after one hour" — **Override** ignores any cache-control headers sent by the origin web app and enforces the CDN-configured duration. "Set if missing" would defer to origin headers which might differ. (2) Duration must be exactly **1 hour** as stated. (3) "Customer videos with varying quality must be delivered to the closest POP node" — the URL includes `?quality=1`, so different quality values must be cached separately. **Cache every unique URL** treats each URL+query-string combination as a unique asset. "Ignore query strings" would serve the same cached file regardless of quality, which breaks the requirement.

More AZ-204 practice questions