11 Questions
What is the key characteristic of big data that requires a scalable architecture?
Volume
Which approach to scaling is at the heart of big data and data science?
Horizontal scaling
Which level of the data hierarchy represents a collection of data elements?
Data record
What is the data type of the accesscount field in the example data?
Integer
What is the value of the macaddress field for the last row in the example data?
B4:07:F9:B9:F8:61
What is the value of the firstaccess field for the record with visitorid 1893826?
24:05.1
Which of the following is NOT a characteristic of big data?
Variability
Which of the following data sources is NOT mentioned in the text as an example of big data?
Satellite imagery
What is the primary purpose of the data manipulation step in the data science process?
To clean and prepare the raw data
Which of the following is the most accurate description of the Velocity characteristic of big data?
The rate of data growth and real-time processing requirements
Which of the following is the LEAST likely to be a challenge associated with big data?
Difficulty in finding skilled data scientists
Test your understanding of the data science process with this quiz covering data acquisition, storage, manipulation, cleaning, visualization, machine learning algorithms, statistical models, and data analysis techniques.
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