Page 466 - Computer Science Class 11 With Functions
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17 and 18 are ASSERTION AND REASONING based questions. Mark the correct choice as

             (A) Both (A) and (R) are true and (R) is the correct explanation (A)
             (B) Both (A) and (R) are true and R is not the correct explanation (A)

             (C) (A) is True but (R) is False
             (D) (A) is false but (R) is True
         17.  Assertion: Phishing is a type of deception.

              Reason: Phishing is a practice of attempting to get sensitive information by taking the user to authentic looking
            website.

         18.  Assertion: In Python, a variable can hold values of different types at different times.
            Reason: A variable’s data type once assigned ,remains fixed throughout the program.

                                                          Part-B

         19.  What is the difference between Interactive mode and Script Mode in Python?
         20.  What is meant by derived logical gates?
         21.  Differentiate between system software and an application software.

                  Or
             What is cloud computing?
         22.   Write a program that takes a sentence  as an input where each word in the sentence is separated by a space the
            function should replace each blank with a hyphen an then print the modified sentence.
         23.  What is difference between dictionaries and lists?
         24.  What is the importance of the IT Act 2000?
                  OR
             Write a shout note of e-Waste.

         25.  Suggest some awareness programs on anti-phishing to safe online.

                                                          Part-C
         26.  Explain the basic architecture of computer system.

         27.  Explain each of the following with an example.
                  Or
             What is meant by relational operators? What are its types?
         28.  Write a program to find and display the sum of the factorial of all the natural numbers from 1 to n.
                  Or
             Write a program to display the first ten numbers of the Fibonacci series 0,1,2,3,………………..

         29.  What is difference between del keyword and pop() function.
         30.  What do you understand by Ethics? Mention at least three ethical values related to computers.

                                                          Part-D

         31.   Write a program to find out  the difference  between compound  interest and  simple  interest. The program
            terminates, as soon as the user enters 0 (zero) simple interest.
                  Or
              Write a program to accept a number and check whether the number is a palindrome or not. Display the message
            accordingly.

         464   Touchpad Computer Science-XI
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