What term describes a service that replicates data across the global Internet?

A Content Delivery Network (CDN) is specifically designed to replicate and distribute data across multiple locations around the globe. This involves caching content in various geographical locations to ensure quick and efficient access for users regardless of their physical distance from the main data source. By doing so, a CDN reduces latency and enhances the speed of content delivery, which is particularly important for services that involve large amounts of data or streaming media.

The architecture of a CDN involves a network of distributed servers that work together to deliver content to users based on their geographic location. This allows for seamless access to data, providing redundancy and reliability by ensuring that even if one server goes down, the content is still accessible from another location.

In this context, while the other terms relate to aspects of data management and storage, they do not specifically focus on the distribution and replication of data via the Internet in the manner that a CDN does. Data migration typically refers to moving data from one location to another, data warehousing involves storing and managing large amounts of structured data, and data synchronization refers to the process of ensuring two or more locations have the same data, which may not necessarily involve global distribution.