XML is a form of: Select the correct answer.

Question

Options

• Amicrodata
• Bmetadata
• Cvalid data
• Drelational data

• A
  5% (3)
• B
  92% (54)
• C
  3% (2)

Explanation

XML (eXtensible Markup Language) is a form of metadata because it describes and provides context about data rather than being the data itself - tags like <author> or <price> annotate what the enclosed content means, not what it is.

Why the others are wrong:

• A (microdata): Microdata is a specific HTML5 specification for embedding structured data; it's a use case that can involve XML-like syntax, not a category XML belongs to.
• C (valid data): "Valid data" isn't a recognized data classification - though XML documents can be valid (schema-conforming), that's a property, not a type.
• D (relational data): Relational data is organized into tables with rows and columns (think SQL databases); XML uses a hierarchical tree structure, which is the opposite approach.

Memory tip: Think of the "M" in XML standing for "Markup" - markup languages tag and describe data, which is exactly what metadata does. If you can describe what data is, that's meta-data.

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