BI_4-6_MODULES

What are the requirements in order for data to be reliable? (Select all that apply)

• Data should be structured

• Data should be easy to collect

• Data should be relevant

• Data should be free of all errors

What type of data is produced by wearable devices, smart buildings, and medical devices?

• Census data

• Survey data

• Sensor data

• Observation study data

What type of data is semi-structured and has some organizational properties but not a rigid schema?

• Emails

• Online forms

• Web logs

• Data from OLTP systems

What are some of the steps in the process of 'Identifying Data'? (Select all that apply)

• Determine the visualization tools that you will use

• Determine the information you want to collect

• Define the checkpoints

• Define a plan for collecting data

What type of data refers to information obtained directly from the source?

• Third-party data

• Primary data

• Secondary data

• Sensor data

Web scraping is used to extract what type of data?

• Data from news sites and NoSQL databases

• Text, videos, and data from relational databases

• Images, videos, and data from NoSQL databases

• Text, videos, and images

Data obtained from an organization's internal CRM, HR, and workflow applications is classified as:

• Secondary data

• Primary data

• Third-party data

• Copyright-free data

Which of the provided options offers simple commands to specify what is to be retrieved from a relational database?

• RSS Feed

• API

• SQL

• Web Scraping

What is one of the common structural transformations used for combining data from one or more tables?

• Denormalization

• Cleaning

• Normalization

• Joins

What tool allows you to discover, cleanse, and transform data with built-in operations?

• Watson Studio Refinery

• Google DataPrep

• OpenRefine

• Trifacta Wrangler