BI#2_1

1. 1. The characteristic of Velocity mainly describes:

• The accuracy of data
  

• The speed of data generation and processing

• The different formats of data

• The value extracted from data

2. 2. Which of the following is considered the most important characteristic of Big Data, as it defines the usefulness of data for decision-making?

• Volume
  

• Velocity

• Value

• Variety

3. 3. A company uses customer reviews and social media comments to understand consumer behavior trends. This is an example of:

• 
  Prescriptive Analytics
  

• Predictive Analytics

• Diagnostic Analytics

• Descriptive Analytics

4. 4. Forecasting future sales based on historical purchase data is an example of:

• 
  Predictive Analytics
  

• Prescriptive Analytics

• Diagnostic Analytics

• Descriptive Analytics

5. 5. A national health authority monitors COVID-19 infection rates across regions to summarize the total number of cases, recoveries, and deaths. This is:

• 
  Predictive Analytics
  

• Descriptive Analytics

• Diagnostic Analytics

• Prescriptive Analytics