Alteryx Foundation Micro-Credential Practice Exam

Which numeric datatype is larger or takes up more space?

1. Int32

2. Float

3. Double

4. Int8

The correct answer is: Double

The choice of Double as the correct answer is based on its size and the amount of data it can represent. In many programming environments, a Double is a 64-bit floating-point number, which allows for a much greater range and precision than other numeric types. In contrast, Int32, being a 32-bit integer, can store whole numbers but has less precision and range than a Double. Float, which is typically a 32-bit floating-point, has even lower precision than Double and is not able to represent as many significant digits. Int8, on the other hand, is only an 8-bit integer type, making it the smallest and least capable in terms of value range. Therefore, the Double type not only occupies more space in memory but also provides the ability to handle larger numeric values and more complex calculations due to its increased bit depth. This is particularly important in applications that require high precision, such as scientific calculations or financial analysis.