1. Which description best defines data?

    Data is strictly numerical information used in science.

✔ A collection of recorded information that can be analysed to make decisions.

    Information that is only useful for technology experts

2. What is the difference between structured and unstructured data?

    Unstructured data is organised and searchable, whereas structured data isn’t searchable.

✔ Structured data is highly organised and easily searchable, whereas unstructured data is not easily searchable and lacks a predefined format.

     Structured data cannot be stored in databases, but unstructured data can.

3. What is SQL?

    A tool for extracting and analysing data

✔ SQL is a programming language used specifically for communicating with RDBMs.

    A database management system

4. Which of the following is an example of structured data?

    A video file uploaded to a streaming platform

✔ A database table with customer names, addresses, and phone numbers

     A collection of PDF documents