What classification does a data structure consisting of ordered elements with a fixed size correspond to?

A data structure consisting of ordered elements with a fixed size corresponds to the classification of array.

Arrays allow storing multiple elements of the same data type in a contiguous memory area, providing quick access by index. The size of the array is set at creation and does not change during program execution.

Example in Swift:

var numbers: [Int] = [1, 2, 3, 4, 5] // array of 5 elements