AZ-104: Microsoft Azure Administrator Full Course - How does CDN work?

This video tutorial explains how Azure CDN works to deliver content quickly and reliably by caching content on edge servers close to users. It covers the process of DNS resolution, routing requests to the nearest point of presence, and fetching files from origin servers if not cached. The importance of time to live (TTL) settings for cache management is discussed, along with how to configure CDN profiles and endpoints in the Azure portal.

Why is the time to live (TTL) important for files cached on edge servers?

What occurs when an object that is currently cached in the CDN is modified?