This test is to measure knowledge of data scientists, analysts, and statisticians working under the catchall term “Data Science”. It covers high-level concepts such as data cleaning, data manipulation, and data modeling; working with data in relational and NoSQL databases; and implementing mathematical algorithms for gaining insights from large datasets. While this test is written to be language-agnostic, it does use some pseudocode. Note: also available are related tests in DATA ANALYTICS (mathematical calculations) and ARTIFICIAL INTELLIGENCE AND MACHINE LEARNING (high-level concepts).