EDUCATIONAL TESTING NETWORK

摘要

Systems and methods are disclosed for serving fresh media content while minimizing Internet traffic by periodically checking content freshness between a local server and a remote server; if a stale content exists on the local server, replacing the stale content with a fresh content from the remote server; and serving the fresh content from the local server. The system also tests the student by adaptively modifying the predetermined testing level based on the diagnosis of each testing group and repeating tests at the adaptively modified predetermined testing level for a plurality of sub-tests.