Business use of Data Revision

What is a relational database and how does it organise data?

• A type of database management system that organises data into structured tables with rows and columns.

• A system that stores unstructured data in its original format.

• A platform for developing, testing, and deploying applications.

• A visual representation of a database’s structure.

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Understanding

Explain the difference between data lakes and data warehouses.

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Which of the following is a key feature of relational databases?

• Schema-on-read model

• Schema-on-write model

• Structured Query Language (SQL)

• Data as a Service (DaaS)

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Discuss the benefits and challenges of cloud computing for businesses.

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What are the three main types of data models in data modelling?

• Conceptual, Logical, Physical

• Structured, Semi-structured, Unstructured

• Volume, Velocity, Variety

• Infrastructure, Platform, Software

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How do Entity-Relationship Diagrams (ERDs) and Data Flow Diagrams (DFDs) differ in their focus?

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Evaluate the role of Big Data in driving innovation in businesses.

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