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Practice Exercises

August 10, 2025 | by Bloom Code Studio

1.

Draw a flow diagram that explains how information architects, database designers, data owners, data stewards, database administrators, and data scientists coordinate their activities.

2.

Research how bad data can result in bad information and why sources impact the quality of the data.

3.

Draw a diagram of a DBMS architecture that could be used to run a medium-scale website.

4.

Research and provide a few examples of pros and cons of SQL databases compared to NoSQL databases.

5.

Which statement is correct?

  • The Boyce-Codd normal form is more strict than the fourth normal form.
  • The Boyce-Codd normal form is more strict than the third normal form.
  • The second normal form is more strict than the Boyce-Codd normal form.
  • The first normal form is more strict than the Boyce-Codd normal form.

6.

Give practical examples of applications where it would be best to use the following: key-value store, document store, column-oriented database, graph-based database

7.

Use a simple example to explain the difference between hindsight, foresight, and insight. What type of technology can be used to derive each one of these?

8.

Which Amazon tool would you use to turn text into speech? What are the other tools listed used for?

  • Amazon Lex
  • Amazon Echo
  • Amazon Polly
  • Amazon Rekognition

9.

State a major constituent of informatics.

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