CSV, JSON, and XML are formats used to represent structured data.

• A. True
• B. False
• C. They are programming languages
• D. They are cloud services

Answer: (A)

CSV, JSON, and XML are formats for representing structured data. These are data interchange formats used to encode information for storage or transmission between devices and applications. They are not programming languages, which define instructions for computation, nor are they cloud services, which provide computing resources or platforms. CSV uses simple comma separators to represent tabular data, JSON is a lightweight text format that can express objects and arrays with nested structures, and XML uses tags to describe data with a hierarchical structure. In IoT contexts, these formats enable devices and services to exchange data in a clear, machine-readable way.