TASC Geography Level 3 Practice Questions - TASC Geography Level 3 (GGY315120) Exam

Raster represents spatial features using a continuous grid of pixel cells with values, whereas vector represents features using discrete points, lines, and polygons defined by coordinates. Raster uses latitude and longitude coordinate vectors, whereas vector uses pixel brightness values from satellite sensors. Raster is strictly used for socio-economic census data, whereas vector is exclusively used for digital elevation models. Raster data cannot store quantitative numeric attributes, whereas vector data stores only qualitative image colors.