CBSE Artificial Intelligence Class 12 Marking Scheme 2021-2022 PDF

CBSE | DEPARTMENT OF SKILL EDUCATION ARTIFICIAL INTELLIGENCE (SUBJECT CODE 843) CLASS XII (SESSION 2021-2022) MARKING SCHEME FOR TERM -1 Max. Time Allowed: 60 Minutes (1 Hr.)...

CBSE | DEPARTMENT OF SKILL EDUCATION ARTIFICIAL INTELLIGENCE (SUBJECT CODE 843) CLASS XII (SESSION 2021-2022) MARKING SCHEME FOR TERM -1 Max. Time Allowed: 60 Minutes (1 Hr.) Max. Marks: 25 General Instructions: 1. Please read the instructions carefully 2. This Question Paper is divided into 03 sections, viz., Section A, Section B and Section C. 3. Section A is of 05 marks and has 06 questions on Employability Skills. 4. Section B is of 15 marks and has 20 questions on Subject specific Skills. 5. Section C is of 05 marks and has 07 competency-based questions. 6. Do as per the instructions given in the respective sections. 7. Marks allotted are mentioned against each Section/question. 8. All questions must be attempted in the correct order SECTION A Answer any 5 questions out of the given 6 questions on Employability Skills (1 x 5 = 5 marks) 1. Ans. b. Being pre-occupied 1 2. Ans. a. Capitalize 1 3. Ans. a. Reema help others as it gives her satisfaction. 1 4. Ans. c. Realistic 1 5. Ans. a. Row 1 6. Ans. a. Windows 1 SECTION B Answer any 15 questions out of the given 20 questions (1 x 15 = 15 marks) 7. Ans. b. Quantitative data 1 8. Ans. b. Survey 1 9. Ans. c Training Set 1 10. Ans. b Mean Absolute Error 1 11. Ans. b AI Project Cycle 1 12. Ans. a Log Loss 1 13. Ans. d. 1 and 3 1 14. Ans. a. Only 1 is correct 1 843-AI- MS-XII-Term1(2021-2022) 1  15. Ans. d. 1, 2 and 3 1 16. Ans. a. 1 1 17. Ans. a. Data Requirements >> Data Collection >> Data understanding >> Data preparation 1 18. Ans. b. Get more training data 1 19. Ans. b Empathies 1 20. Ans. c. It makes the cost function faster to optimize 1 21. Ans. a Scikit-learn 1 22. Ans. c. Point estimate for population standard deviation is 3.5 1 23. Ans. c. KNN is used only for classification problem statements. 1 24. Ans. d. 28.956 1 25. Ans. c. Reinforcement Learning. 1 26. Ans. c Python 1 SECTION C (COMPETENCY BASED QUESTIONS) Answer any 5 questions out of the given 7 questions (1 x 5 = 5 marks) 27. Ans. c iii) 1 28. Ans. b. Correlation and covariance values are the same. 1 29. Ans. d Data evaluation 1 30. Ans. b ii) 1 31. Ans. b. Feature Extraction needs to be done manually in both ML and DL 1 algorithms. 32. Ans. a Predictive Model 1 33. Ans. a. Artificial neurons are similar in operation to biological neurons. 1 843-AI- MS-XII-Term1(2021-2022) 2