What term defines a set of data that describes information about other data?

What term defines a set of data that describes information about other data?

• A. Blob Storage
• B. Tag
• C. Key-Value Pair
• D. Metadata

Answer: (D)

Metadata is data about data. It describes information about other data, such as who created it, when it was created, what format it’s in, its size, location, or purpose. This descriptive layer helps you organize, search, and understand data without having to inspect the actual content. For example, a photo’s metadata might include the camera model and GPS coordinates, while a document might list the author and last modification date. Blob storage is where the actual files live, not the descriptions about them. A tag is a label that can categorize items and is a form of metadata, but metadata is the broader concept that encompasses these descriptive details. A key-value pair is a data structure that can store information, including metadata, but it isn’t the term for the concept of representing data about data itself.