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    Question

    Which of the following is the most accurate description

    of semi-structured data ?
    A Data stored in rows and columns in a relational database. Correct Answer Incorrect Answer
    B Videos and images without any metadata. Correct Answer Incorrect Answer
    C JSON files that organize data with key-value pairs. Correct Answer Incorrect Answer
    D Plain text documents without specific formatting. Correct Answer Incorrect Answer
    E Categorical data without clear numerical relationships. Correct Answer Incorrect Answer

    Solution

    Explanation: Semi-structured data, such as JSON (JavaScript Object Notation) files, lies between structured and unstructured data. It has an organized schema (e.g., key-value pairs) but does not conform to strict tabular formats like relational databases. JSON is widely used in APIs, web applications, and NoSQL databases because it allows flexibility while still enabling data to be queried or processed programmatically. Unlike structured data, which requires predefined schemas, semi-structured data provides adaptability for evolving datasets. JSON's format, combining hierarchy and flexibility, is a hallmark of semi-structured data. Option A: Relational databases store structured data in tables, which is not semi-structured. Option B: Videos and images without metadata are unstructured data, lacking any predefined schema. Option D: Plain text documents without formatting fall into the unstructured category, not semi-structured. Option E: Categorical data relates to types of variables, not data formats.

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