Big Data

• Which of the three Vs of big data describes that the data consists of many different types of data?

  Variety
• Define big data


  A catch-all term for data that won’t fit the usual containers.
• How is useful information extracted from big data?

  By using machine learning techniques to discern patterns in the data
• Which programming paradigm is well-suited to processing big data?

  Functional programming
• List the three Vs of big data

  • Volume
  • Velocity
  • Variety
• Which property of data structures in functional programs means that their value doesn’t change after instantiation?

  Immutability
• Why can’t big data be stored using conventional databases?

  Conventional databases require data to conform to a row and column format
• What represents relationships between entities in graph schema?

  Arrows
• What is the most challenging aspect of big data?

  The data’s lack of structure
• Which property of functional programs means that they have no side effects?

  Statelessness
• Using the fact-based model, how can a computer ensure that it uses the most recent available information?

  Compare the timestamps of the facts
• Which three features of functional programs make it easier to write correct, efficient, distributed code?

  • Statelessness
  • Immutability
  • Support for higher-order functions
• What is represented by nodes in graph schema?

  Entities