Section 12 - OOP and functional programming

Question 1

what are the three aspects of big data

Answer 1

• volume: too big to fit in a single server
• velocity: milliseconds or seconds to respond
• variety: the data may be in many forms

Question 2

what is functional programming

Answer 2

a programming paradigm useful for working with data distributed across multiple servers

Question 3

features of functional programming languages that make them easier to write code distributed across multliple servers

Answer 3

• statelessness
• immutable data structures (values cannot be altered after creation)
• high order functions can compose the results of processing across multiple cores

Question 4

issues with big data

Answer 4

• variety: cannot be stored on a database
• volume: will not fit on one server
• velocity: data must be processed as it is recieved