# Working with Data in Motion

Working with Data in Motion: Data in Transit vs Data at Rest, Extract Transform Load.

Updated: November 3, 2026

1. [Data in Transit vs Data at Rest](https://www.ask-codey.com/lessons/what-is-a-stream-data-in-transit-vs-data-at-rest) (Apprentice): Stored data is at rest, and data moving between places, such as over a network or from a query, is in transit.
2. [Extract Transform Load](https://www.ask-codey.com/lessons/what-is-a-stream-extract-transform-load) (Apprentice): ETL (Extract, Transform, Load) takes data from a source, reshapes it in a series of small steps, and stores it at a destination.

Source: https://www.ask-codey.com/courses/csharp-full-stack-bootcamp/topics/working-with-data-in-motion