Explanation:
In simple English, an array is a collection.
In C also, it is a collection of similar type of data which can be either of int, float, double, char (String), etc. All the data types must be same. For example, we can't have an array in which some of the data are integer and some are float.
Depends, but I'd say false.
ISO it is an organzation for agreement on internationational of network communication worldwide
OSI is the model for understanding and designing a network architecture