Array variables

Array variables

• A. store lists of information
• B. store single values
• C. store key-value pairs only
• D. store error codes only

Answer: (A)

Arrays hold multiple items in a defined order, forming a list you can access by position. This makes them ideal for storing collections like a sequence of numbers, names, or other related data. They are not meant for a single value—that’s what a scalar variable is for. They aren’t limited to key-value pairs—that role belongs to maps or dictionaries. And while you could store error codes in an array, that’s not the defining purpose of arrays. So the best description is that they store lists of information.

Arrays hold multiple items in a defined order, forming a list you can access by position. This makes them ideal for storing collections like a sequence of numbers, names, or other related data. They are not meant for a single value—that’s what a scalar variable is for. They aren’t limited to key-value pairs—that role belongs to maps or dictionaries. And while you could store error codes in an array, that’s not the defining purpose of arrays. So the best description is that they store lists of information.