The JSON (JavaScript Object Notation) data interchange format is built upon two fundamental data structures. The first is an object, which is an unordered collection of name/value pairs enclosed in curly braces {}. The names (or keys) are strings, and the values can be any valid JSON data type. The second is an array, which is an ordered list of values enclosed in square brackets []. These two structures can be nested to represent complex, hierarchical data, forming the basis of all valid JSON documents.

A. tuples: This is an immutable data structure found in languages like Python, not a native data type defined in the JSON standard.

D. dictionaries: While a JSON object is conceptually similar to a dictionary, "dictionary" is a Python-specific term. The official JSON specification uses the term "object".

1. Source: The JavaScript Object Notation (JSON) Data Interchange Format

RFC 8259

Reference: Section 1

Introduction. "JSON is built on two structures: A collection of name/value pairs. In various languages

this is realized as an object... An ordered list of values. In most languages

this is realized as an array..."

Reference: Section 4

Objects

and Section 5

Arrays

provide the formal definitions for these structures.

2. Source: Juniper Networks Day One: Data Serialization for Network Engineers

Automation Engineers

and Everyone Else

Reference: Chapter 2

"JSON

" Page 13. "JSON has two primary data structures: Objects... Arrays..."

3. Source: Introducing JSON (json.org)

Reference: The main page explicitly states

"JSON is built on two structures: A collection of name/value pairs. In various languages

this is realized as an object... An ordered list of values. In most languages

this is realized as an array..."