Loading the lesson
Loading the lesson
Search AllRounder.ai
Search the courses, subjects, tracks, games and features, or jump straight to a page.
Search the courses, subjects, tracks, games and features, or jump straight to a page.
2 cards from this section. Quick, good the night before a test.
What does RDD stand for?
Think about what it means to be robust and spread out.
What are DataFrames similar to?
Consider how databases organize data.
What is an RDD?
Think about the role of RDDs in Spark.
True or False: DataFrames have no structure.
Reflect on how databases store data.
You have a dataset of unstructured text data that needs several passes of transformations–which data structure would you choose and why?
Consider how the data is structured.
Explain how you would optimize a query on a DataFrame containing millions of rows of structured data.
Think about what happens behind the scenes with structured data.
5 more questions in this section. Enroll free to practise them all.
Enroll free