1 Which of the following techniques is used in data analysis? A Sorting B Filtering C Statistical analysis D Formatting
2 Data that does not follow a fixed format is called: A Structured data B Unstructured data C Quantitative data D Database data
3 What is the term for raw, unorganized facts and figures? A Information B Data C Knowledge D Insight
4 What is the role of data analysis? A To collect raw data B To extract useful information from data C To store data in databases D To delete unnecessary data
5 Which of the following is a data science technique? A Machine learning B Word processing C Web browsing D Email filtering
6 Which type of data is descriptive and non-numerical? A Quantitative data B Qualitative data C Structured data D Numerical data
7 Which type of data is collected through measurements and can be counted? A Qualitative data B Quantitative data C Unstructured data D Text data
8 Which quality of good data means it is free from errors? A Accuracy B Relevance C Timeliness D Completeness
9 What is a quality of good data? A It is very large B It is accurate C It is expensive D It is colorful
10 Which quality of good data ensures that it is free from errors? A Accuracy B Timeliness C Relevance D Completeness
11 Which data storage technique is best for storing large volumes of structured data? A Spreadsheets B Databases C Text files D Social media
13 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
14 What is the purpose of cloud storage in data management? A To store data offline B To access data remotely C To delete data automatically D To slow down data processing
15 What is Big Data characterized by? A Small volume and low speed B Large volume, high speed, and variety C Only structured data D Only numerical data
16 What is the main purpose of data visualization? A To store data B To make data easier to understand C To collect data D To delete data
17 Which of the following is a tool used for data visualization? A Microsoft Excel B Tableau C MySQL D Python
18 Data Science is an interdisciplinary field. What does interdisciplinary mean? A It uses only computer science B It combines knowledge from many fields C It deals with only numbers D It is a single subject
19 Which data storage technique is suitable for handling very large volumes of data from multiple sources? A Spreadsheet B Data warehouse C Text file D Notepad
20 What does data validation ensure? A Data is accurate and useful B Data is stored in the cloud C Data is visualized D Data is deleted
21 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
23 Which tool is commonly used for data visualization? A Microsoft Excel B Notepad C Calculator D Paint
24 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
25 What is raw data? A Unprocessed facts and figures B Processed information C Organized knowledge D A type of database