Multiple Choice
A company combined monthly sales data into a single group to calculate the total sales by a quarter or a year. This is an example of the ________ step of data transformation.
A) feature construction
B) aggregation
C) dummy coding
D) normalization
Correct Answer:

Verified
Correct Answer:
Verified
Q1: In the context of database management systems,
Q3: Describe and explain the four processes of
Q4: Identify the second step the MapReduce platform
Q5: Compare and contrast relational and non-relational databases.
Q6: Companies that adopt _ typically achieve up
Q7: In a dataset, values that are at
Q8: Most traditional Extract, Transform, and Load (ETL)
Q9: In data transformation, _ involves creating a
Q10: The veracity characteristic of big data provides
Q11: The _ characteristic of big data enables