Practice Quiz
What are the requirements in order for data to be reliable? (Select all that apply)
1 point
Data should be structured
Data should be free of all errors
Data should be relevant
Data should be easy to collect
2.
Question 2
What type of data is produced by wearable devices, smart buildings, and medical devices?
1 point
Sensor data
Census data
Observation study data
Survey data
3.
Question 3
What type of data is semi-structured and has some organizational properties but not a rigid schema?
1 point
Data from OLTP systems
Emails
Online forms
Web logs
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