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16.  What is blockchain technology?
             Ans.   Blockchain technology is a decentralized, distributed ledger that records transactions on multiple computers, providing a
                  secure and transparent way to store and transfer data.


                   Assertion and Reasoning Based Questions


                  In the following question, a statement of Assertion (A) is followed by a statement of Reason (R).
                  a.  Assertion (A) and reason (R) are true and reason (R) is the correct explanation of Assertion (A).
                  b.  Assertion (A) and reason (R) are true and reason (R) is not the correct explanation of Assertion (A).
                  c.  Assertion (A) is true but reason (R) is false.
                  d.  Assertion(A) is false but reason (R) is true.
               1.  Assertion(A): Machine Learning (ML) is a branch of Artificial Intelligence(AI).
                  Reasoning(R): AI aims to design autonomous systems, and ML systems use data to learn and make decisions.
               2.  Assertion(A): Machine learning can be used to create personalized recommendations for users based on their past behavior.
                  Reasoning(R): By analyzing past behavior, machine learning algorithms can predict which products or services a user is
                  most likely to be interested in.
               3.  Assertion(A): Supervised machine learning involves training a model on labelled data to make predictions.
                  Reasoning(R): Machine learning algorithms use huge datasets to make predictions.
               4.  Assertion(A): IoT devices are able to collect data from physical devices.
                  Reasoning(R): The sensors embedded in IoT devices help capture data.
               5.  Assertion(A): One of the key benefits of blockchain technology is its decentralization.
                  Reasoning(R): Transactions recorded on the blockchain are validated and recorded by a decentralized network of nodes.


                    Case-based Questions


               1.  Samvit wants to predict the sale of cotton T-Shirts in the months of December and January. For this, he has collected
                  sales data for the last five years from multiple stores across the country. Which type of machine learning model is Samvit
                  utilizing?
             Ans.  Supervised Machine Learning

               2.  Julie is a history teacher, and she loves to visit and explore historical places. Recently, her friend told her about a mobile app
                  that can actually show how a particular historical monument looked during ancient times. On wearing smart glasses, she
                  could actually have an experience of visiting the monument in that particular era. Which technology is this app utilizing?
             Ans.  Augmented Reality
               3.  Parizaad is a single mother who works in a pharmaceutical company. She wants to monitor her son’s activities when she is
                  not at home. Therefore, she installed CCTV cameras in her son’s room so that she can monitor him from her smartphone.
                  Which technology is she utilizing?
             Ans.  Internet of Things




















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