
Microsoft Certified Azure Data Fundamentals (DP-900) Exam Guide
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This book’s first content section introduces you to data concepts and terminology. We will look at what data is, its definition, and how and why it is structured differently. Data structures are specialized formats for organizing, processing, retrieving, and storing data. They are essential for efficient data management and manipulation in computing.
Data is essentially information. When we are talking about modern IT systems, this data is stored as values and can be anything from a person’s age stored in a database to a two-hour film stored in the servers of an on-demand video-streaming service.
All data starts as “raw data,” collected from different sources without order and classification. Generally, this data needs to be filtered, sorted, and analyzed before it can be used. Raw data can be likened to crude oil; its potential and value cannot be derived when raw without action being taken to transform...