Chapter- 4 Big Data-Big Insights
1. What is Data?
Answer: Data means raw facts, figures or information collected for reference or analysis.
2. What is Big Data?
Answer: Big Data refers to extremely large volumes of data generated from different sources every second.
3. Give two examples of sources of Big Data.
Answer: Social media platforms (Facebook, Instagram), online shopping websites, hospitals, schools.
4. What is the main function of Data Analytics?
Answer: Data Analytics helps study and analyze data to find meaningful patterns and insights.
5. How does Big Data help airlines?
Answer: Airlines use data to know when most passengers travel and schedule flights accordingly.
6. In the lesson, what example is given about UPSC/MPSC coaching?
Answer: Since many students apply for UPSC/MPSC, more coaching centres and online courses can be started.
7. What suggestion is given for morning walkers at Kamla Nehru Park?
Answer: Fitness shops, juice stalls and yoga classes can be opened for them.
8. Why is television viewership important for companies?
Answer: To decide the best time to show advertisements and reach maximum audience.
9. What does a computer analyst do?
Answer: A computer analyst gathers, analyzes and interprets data to help companies take decisions.
10. What skill is most important for a computer analyst?
Answer: Logical thinking and problem-solving.
11. Define the term “Insight.”
Answer: Insight means a deep understanding or useful conclusion drawn from analysed data.
12. How does online shopping use data?
Answer: It tracks customers’ likes, shopping habits and suggests products accordingly.
13. Write any two sources of information mentioned in the ice-breaker.
Answer: Instagram, newspaper, YouTube, radio, WhatsApp (any two).
14. Why is the world called a 'Data-driven World'?
Answer: Because almost every action we do produces data that is used for decision-making.
15. How does Google Maps use Big Data?
Answer: It collects data from millions of phones to show traffic, shortest routes and estimated time.
16. What is structured data?
Answer: Data that is arranged systematically in rows and columns.
17. What is unstructured data?
Answer: Data like images, videos, posts which are not arranged in tables/forms.
18. Why is privacy important while using Big Data?
Answer: Because personal data must be protected from misuse or hacking.
19. What is Artificial Intelligence (AI)?
Answer: AI is technology that enables computers to think and act like humans.
20. How do shops use Big Data?
Answer: They track which products people buy more and stock those items accordingly.
21. How can students use Big Data?
Answer: Students can use online apps, learning platforms and exam analysis to improve study plans.
22. What does CCTV footage provide?
Answer: It provides visual data used for safety, evidence or investigation.
23. What job opportunities come from Big Data?
Answer: Data scientist, data analyst, AI engineer, cyber security expert.
24. Why are online advertisements shown differently to each person?
Answer: Because ads are shown based on individual search history and interests.
25. Give an example of a problem solved by Big Data during a disaster.
Answer: Tracking flood-affected areas using satellite data helps send rescue teams quickly.
26. Where do hospitals use Big Data?
Answer: In patient medical history, diagnosis and predicting disease patterns.
27. How does social media use data?
Answer: Platforms store posts, likes, comments and suggest similar content.
28. What is the role of Cyber Security?
Answer: To protect personal and confidential data from cyber-attacks.
29. What can be concluded about Big Data from the lesson?
Answer: Big Data is powerful, helps businesses and society, and is shaping the future world.
30. Why must people be careful while sharing information online?
Answer: Because once data is uploaded, it may remain on the internet permanently and can be misused.
Answer by Dimpee Bora
