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Which lightweight data-interchange formats are easily readable by computing systems?

  1. XML

  2. JSON

  3. REST

  4. Python

The correct answer is: XML

The correct choice is based on the recognition that XML (eXtensible Markup Language) is a widely used lightweight data-interchange format specifically designed to be both machine-readable and human-readable. XML uses a structured format characterized by tags, allowing for the clear organization of data. Its versatility and ability to encapsulate complex data structures make it an important standard in various applications, particularly those involving data transmission over networks. While JSON (JavaScript Object Notation) is also a lightweight data-interchange format that excels in readability and ease of use, especially in web applications and APIs, the question directly specified the particular format sought after. REST (Representational State Transfer) is an architectural style for designing networked applications and does not directly pertain to a data format, and Python is a programming language rather than a data interchange format. Therefore, XML distinctly meets the criteria of being a data-interchange format that is easily interpretable by computing systems, outlining its suitability for various data communication requirements.