SAMPLE QUESTION
Which of the following statements accurately describes the concept of data resolution for gridded data in GIS?
A) Data resolution is the smallest difference between adjacent positions that can be recorded. It is tied to the scale of a paper map.
B) Data resolution refers to the ability of a sensor to distinguish between wavelength intervals in the electromagnetic spectrum.
C) High-resolution data is typically more accurate and precise, allowing for better representation of the Earth’s surface.
D) Data resolution is primarily concerned with the clarity and detail of an image, often measured in terms of dots per inch (DPI) or pixels per meter.
Answer: D) Data resolution is primarily concerned with the clarity and detail of an image, often measured in terms of dots per inch (DPI) or pixels per meter. It describes how well an image or dataset can represent features on the ground12. Higher resolution allows for better visualization and analysis of smaller ground objects, but it also results in larger datasets and increased storage requirements.