1 Which of the following is an example of qualitative data? A Height in centimeters B Eye color C Number of students D Temperature in Celsius
2 Which data storage technique is best for handling large amounts of unstructured data? A Spreadsheet B Relational database C NoSQL database D Data warehouse
3 Which storage technique is best for organized tables of records? A Spreadsheet B Database C Text file D Image file
4 What is data validation? A Checking data for accuracy and quality B Storing data in the cloud C Visualizing data with charts D Sharing data with others
5 Which of the following is an example of unstructured data? A A table of student marks B A database of employee records C A collection of images D A spreadsheet of expenses
6 Which step involves removing errors and inconsistencies from data? A Data collection B Data visualization C Data cleaning D Data storage
7 Data that describes qualities or characteristics is called: A Quantitative data B Qualitative data C Structured data D Unstructured data
8 Which of the following is a source of online data gathering? A Surveys B Interviews C Social media platforms D Experiments
9 Which step is part of data pre-processing? A Data cleaning B Data visualization C Data storage D Data sharing
10 Which type of data describes qualities or characteristics? A Quantitative data B Qualitative data C Structured data D Unstructured data
11 What does data pre-processing involve? A Cleaning and transforming raw data B Only visualizing data C Only storing data D Only sharing data
12 Which of the following best describes raw data? A Organized information with meaning B Unprocessed facts and figures C Knowledge gained from experience D A final conclusion drawn from analysis
13 What is the role of data analysis in the data science workflow? A To collect data B To interpret data and draw conclusions C To store data D To delete data
14 Which of the following is a tool used for data visualization? A Microsoft Excel B Tableau C MySQL D Python
15 A database is an example of which storage technique? A Spreadsheet B Structured storage C Unstructured storage D Cloud storage
16 What is the term for unprocessed facts and figures? A Information B Knowledge C Raw data D Database
17 Which of the following is an example of structured data? A A paragraph of text B A table of student marks C A video file D A social media post
18 Which of the following is a primary source of data? A Books B Interviews C Websites D Government reports
19 Which of the following is an example of quantitative data? A Gender B Nationality C Age D Blood type
20 What does cloud storage allow users to do? A Store data on local hard drive only B Access data from anywhere C Delete data permanently D Print data faster
21 Which type of data is descriptive and non-numerical? A Quantitative data B Qualitative data C Structured data D Numerical data
22 Which of the following is a data analysis technique? A Data entry B Data cleaning C Regression analysis D Data backup
24 Which tool is commonly used for data visualization? A Microsoft Excel B Notepad C Calculator D Paint
25 Which of the following is a practical application of Big Data? A Typing a letter B Recommendation systems C Drawing a picture D Sending an email