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Unit 4: Data and Analysis

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1. What is the main purpose of data analysis?

A To delete data
B To organize information
C To extract useful patterns
D To store data

2. Which of the following is the best example of qualitative data?

A Marks obtained
B Student height
C Student name
D Age

3. What is data?

A Processed information
B Raw facts and figures
C Computer program
D Output of analysis

4. Which tool is commonly used for data analysis at basic level?

A Paint
B Calculator
C Spreadsheet
D Browser

5. Which is an example of structured data?

A Emails
B Images
C Database records
D Videos

6. In the context of Big Data, what does the characteristic 'Variety' refer to?

A The speed at which data is created and processed.
B The huge quantity or amount of data.
C The different forms of data, such as text, images, and videos.
D The trustworthiness and quality of the data.

7. Which is a common source of Big Data?

A Typewriters
B Social media
C Handwritten notes
D Printed books

8. What is the first step in data analysis?

A Decision making
B Data collection
C Data deletion
D Reporting

9. What are the raw, unprocessed facts and figures collected from different sources called?

A Information
B Data
C Knowledge
D Analysis

10. Which data type has some organizational properties but does not fit into a rigid relational model? Examples include XML and JSON files.

A Structured data
B Unstructured data
C Raw data
D Semi-structured data

11. Which of the following is numeric data?

A Name of city
B Roll number
C Gender
D Color

12. Which characteristic of Big Data refers to the enormous size of the dataset?

A Velocity
B Variety
C Veracity
D Volume

13. Which of the following best describes information?

A Unprocessed data
B Meaningless facts
C Processed and organized data
D Random numbers

14. Why is Big Data important?

A It wastes time
B It increases paperwork
C It helps in better decision making
D It deletes information

15. Which factor is NOT a characteristic of Big Data?

A Volume
B Velocity
C Variety
D Simplicity

16. What do we call data represented in numbers?

A Qualitative data
B Quantitative data
C Descriptive data
D Unstructured data

17. What does Volume in Big Data mean?

A Speed of data
B Type of data
C Amount of data
D Accuracy of data

18. Which of the following is quantitative data?

A Color
B Weight
C Type
D Name

19. Data that is descriptive and represents categories, such as gender or city names, is called:

A Quantitative data
B Qualitative data
C Numerical data
D Time-series data

20. Which of the following is an example of Big Data velocity?

A Stored files
B Archived records
C Live streaming data
D Old documents

21. Which device generates large amounts of data?

A Chalk
B Smartphone
C Notebook
D Blackboard

22. Which of the '3 Vs' of Big Data refers to the different forms of data, such as text, images, and videos?

A Volume
B Variety
C Velocity
D Veracity

23. Which characteristic ensures data accuracy?

A Volume
B Velocity
C Variety
D Veracity

24. Which field mainly uses data analysis?

A Painting
B Sports only
C Data Science
D Poetry

25. What type of data includes videos and images?

A Structured
B Numeric
C Unstructured
D Tabular

26. Data that is organized in a fixed format, typically in rows and columns like in a database table, is known as:

A Structured data
B Unstructured data
C Semi-structured data
D Raw data

27. Which of the '3Vs' of Big Data refers to the speed at which new data is generated and processed?

A Volume
B Variety
C Veracity
D Velocity

28. Which sector uses Big Data extensively?

A Healthcare
B Education
C Banking
D All of these

29. In the context of Big Data, what does 'Velocity' refer to?

A The size of the dataset
B The different types of data
C The speed at which data is generated and processed
D The accuracy of the data

30. Which of the following is an example of semi-structured data?

A Relational database
B Plain text
C XML file
D Image file

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