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Home » Quiz » Data Modelling Quiz

Each row in a column-family store is identified by a unique _______.

Difficulty level
  • Cell
  • Column
  • Key
  • Value
Each row in a column-family store is identified by a unique key. This key is used to retrieve and distinguish the row from others in the same family. The key is crucial for efficient data retrieval in column-family stores.
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Data Modelling Quiz
Quiz
Scenario: A team of data analysts needs to collaborate on designing a complex database schema using ER diagram tools. Discuss the collaborative features and project management functionalities that would be beneficial in this scenario.
An attribute is said to be _______ if it is determined by a proper subset of the primary key.

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  • In an inheritance hierarchy, what do subclasses inherit from their superclass?
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  • Effective collaboration in data modeling requires clear _______ among team members.
  • _______ allows users to work on different versions of the data model simultaneously.
  • Which type of database is commonly associated with document-based modeling?

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