Which is unstructured data?
Why C is the answer
Customer call recordings
Audio has no fixed tabular structure. Tables are structured.
In detail
- Audio recordings are unstructured data.
- Most business data is unstructured.
Use case
An illustrative scenario, not a real incident.
Call recordings hold a lot of insight, but no rows or columns. Speech-to-text and AI can make them usable.
See it in different ways
flowchart TD A["Data"] --> B["Structured: tables with fixed columns"] A --> C["Unstructured: text, images, audio"] A --> D["Labeled: examples with known answers"] A --> E["Unlabeled: no answers attached"]
mindmap
root((Data))
Structured
Tables
Unstructured
Audio
Images
Documents
Labeled
Tagged examples
Unlabeled
No tags
Quality
Accuracy
Completenessmindmap
root(("Business data"))
n1["Structured"]
n2["Tables"]
n3["Unstructured"]
n4["Calls"]
n5["Emails"]
n6["Images"]Key point: Audio is unstructured.
Why the other options are wrong
- A. A spreadsheet of product prices by region
- A spreadsheet has rows and columns.
- B. A database of orders with typed fields
- Typed fields are structured.
- D. A table of invoices with fixed columns
- Fixed columns are structured.

