If you define the array without assign any value in the Local scope, it will automatically assign the default value Linked lists are dynamic data structures. Dynamic data structure memory allocated at compile time. Local variable which can be accessed by all modules of the program Amount value of an array should not be greater than the size of array. A heterogeneous data structure is the one which can contain data elements of different types of the data type. Link list data structure is indexed structures? If two basic types of structures are mixed together is known as non contiguous from of data structure. If element of the data structure from a sequence of list then it's called non liner data structure. Primitive Data Structures emphasize on grouping same or different data items with relationship between each data item