31.
What is the primary advantage of using data compression techniques in big data storage and processing?

32.
In the context of big data, what does the term "data skew" refer to?

34.
What is the primary benefit of using a columnar storage format like Parquet in big data analytics?

37.
What is the primary purpose of "data replication" in a distributed computing environment?

38.
In big data analytics, what is the term for the process of transforming and preparing raw data for analysis, often involving cleaning and structuring the data?

39.
What does the term "YARN" stand for in the context of Hadoop and distributed computing?

40.
Which technology is commonly used for streamlining the data velocity aspect of big data, allowing for real-time data collection and analysis?