Container Object: A container object is any data structure that holds other objects or values. It provides methods for adding, removing, and accessing those objects or values.
Fixed Size: Fixed size refers to the characteristic of an array where it has a predetermined number of elements that cannot be changed once created.
Index Position: Index position refers to the unique numerical identifier assigned to each element in an array. It represents the element's location within the array and starts from 0 for the first element.