Artificial intelligence code 843, Exams of Computer science

Download Artificial intelligence code 843 and more Exams Computer science in PDF only on Docsity! VAILANKANNI PUBLIC SCHOOL KRISHNAGIRI Pre-Board Examination [2023-2024] Grade: XII Marks: 50 Subject: Artificial Intelligence Time: 2 Hours Name: Roll No: Date: General Instructions: 1. Please read the instructions carefully. 2. This Question Paper consists of 21 questions in two sections: Section A & Section B. 3. Section A has Objective type questions whereas Section B contains Subjective type questions. 4. Out of the given (5 + 16 =) 21 questions, a candidate has to answer (5 + 10 =) 15 questions in the allotted (maximum) time of 2 hours. 5. All questions of a particular section must be attempted in the correct order. 6. SECTION A - OBJECTIVE TYPE QUESTIONS (24 MARKS): i. This section has 05 questions. ii. There is no negative marking. iii. Marks allotted are mentioned against each question/part. iv. Do as per the instructions given. 7. SECTION B – SUBJECTIVE TYPE QUESTIONS (26 MARKS): i. This section has 16 questions. ii. A candidate has to do 10 questions. iii. Do as per the instructions given. iv. Marks allotted are mentioned against each question/part. SECTION A: OBJECTIVE TYPE QUESTIONS Q1 Answer any 4 out of the given 6 questions on Employability Skills. (4 x 1 = 4 Marks) i. What is the third stage of Active Listening? a) Understanding b) Remembering c) Evaluating d) Receiving 1 ii. Which of the following statement is incorrect? a) Self-Motivation affects cognitive processes and learning strategies used for completing similar tasks. b) Self-Motivation increases individual’s energy and activity. c) Self-Motivation helps us to ensure your work inspite of your weaknesses. d) Self-Motivation depend on others and drives your strengths to meet your goals. 1 iii. Rohan is a high-school student. Whenever he gets low marks, he feels depressed and fights with his friends. His parents and teachers have tried talking to him but he feels angry, worthless and shouts at them. Which cluster of personality disorder Rohan belongs to? a) Suspicious b) Emotional and Impulsive c) Anxious d) All of these 1 iv. Which of the following reference is used to copy or move formula from one cell to another, the cell address in the formula does not change, i.e., the formula will remain same? a) Relative b) Absolute c) Mixed d) None of these 1 v. Assertion (A): Entrepreneurship is a risky activity of commencing a business usually a startup company, offering distinct products and services to the target customers, which may or may not get success. Reason (R): Sociologists define an entrepreneur as a person, whose actions would determine his social status and his contribution to the societal development. a) Both A and R are true and R is the correct explanation of A. b) Both A and R are true and R is not the correct explanation of A. c) A is true but R is false. d) A is false but R is true. 1 vi. ____________ help organisations analyse their energy consumption with the aim of reducing the negative impact of energy resources. a) Energy Auditors b) Energy Consultants c) Natural Scientists d) Environmental Engineers 1 Q2 Answer any 5 out of the given 6 questions. (5 x 1 = 5 Marks) i. Dimensionality works in two sizes: the ___________ size of a dataset represents the amount of data we have; and the __________ size represents the number of features. a) horizontal, vertical b) vertical, diagonal c) horizontal, diagonal d) vertical, horizontal 1 ii. Which stage of DT helps you to learn about the audience for whom you are designing, by observation and interview? a) Prototype b) Ideate c) Empathize d) Data 1 iii. ____________ analytics takes into account all possible factors in a scenario and suggests actions that can be taken. a) Prescriptive b) Diagnostic c) Descriptive d) Predictive 1 iv. Which of the following refers to the process of detecting and tagging data samples? a) Data Modelling b) Data Labelling c) Testing your model d) Evaluation 1 v. State True or False. Generally, every AI project lifecycle encompasses six main stages. 1 vi. Assertion (A): Stories create an engaging experience that connects the audience to a totally different mental platform like to different time and space. Reason (R): Storytelling is considered a powerful element that enhances global networking by increasing the awareness about the cultural differences and enhancing cross-cultural understanding. a) Both A and R are true and R is the correct explanation of A. b) Both A and R are true and R is not the correct explanation of A. c) A is true but R is false. d) A is false but R is true. 1 Q3 Answer any 5 out of the given 6 questions. (5 x 1 = 5 Marks) i. Which of the following is belongs to Deep Learning Techniques? a) Tensor Flow b) DataRobot c) GANs and RL d) Anaconda 1 ii. Train-test split ratio and Gradient descent are examples of ______________ a) Parameters b) Hyper-parameters c) Parameter tuning d) Hyper-parameter Tuning 1 iii. The data scientists will use a ____________ set for predictive modeling. a) Training b) Testing c) Evaluate d) All of these 1 iv. _________ represents the historical average error and gives us an overall direction of the error. a) Bias b) Precision c) RMSE d) MAE 1 v. A __________ is a circular statistical graphical chart, which is divided into slices to illustrate numerical proportion. a) Funnel Chart b) Heat Map c) Pie Chart d) Density Curve 1 vi. Which of these is not a step involved in telling an effective data story? a) Choosing the right data and visualizations b) Drawing attention to key information c) Developing a narrative d) Developing the data model 1 Q4 Answer any 5 out of the given 6 questions. (5 x 1 = 5 Marks) i. Which of the following is used as a visualization tools? i) G-Suite ii) Leaflet iii) Tableau Public iv) Open Refine a) Only i) and ii) b) Only ii), iii), iv) c) Only i) and iv) d) i), ii), iii) and iv) 1 ii. Arrange the following key steps of creating stories. 1) Use powerful headings 2) Dig deeper to identify the sole purpose of your story 3) Conclude with brevity 4) Follow the Pen-and-Paper approach 5) Design a roadmap a) 2-4-1-3-5 b) 4-5-3-1-2 c) 4-2-1-5-3 d) 2-5-4-1-3 1 iii. MSE can be optimized better because it is a) Differentiable b) Discrete c) Scalable d) Logarithmic 1 iv. Which of these is not a cross-validation technique? a) Holdout Method b) Leave P-Out Cross Validation c) Repeated Random Sub-Sampling Method d) Sub-Sampling Cross Validation 1 v. Which of the following is NOT a step in the build stage of the AI model life cycle? a) Feature Engineering b) Model Selection c) Data Cleaning d) Model Testing 1