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C.  Fill in the blanks.
                     1.  ________________ operator can be used to concatenate strings.

                     2.   A ________________ acts  like a gatekeeper and  prevents  unauthorised  access  to a
                        computer network.
                     3.  Internet is a ________________ of interconnected computers.

                     4.   ________________ refers to the sending of bulk mail by an identified or unidentified
 Prime (Ver. 2.2)-VII       5.  COD stands for ________________.                                                            TEST SHEET 2
                        source.



                     6.   ________________ not only records the movements but also sends alerts for suspicious
                        movements.




                   D.  Short answer type questions.
                     1.   What is operator precedence in Python?
                     2.  What is a Computer Virus?
 128                 3.  What is hacking?                                                                                 129

                     4.  Give any two examples of intellectual property rights.

                     5.  Write the names of any two modes of payments.
                     6.  What are Smart Homes?

                 E.  Long answer type questions.
                     1.  What are the different types of conditional statements used in Python?

                     2.  What are the different types of arithmetic operators?
                     3.  Write any four common symptoms of an infected computer system.

                     4.  What are the ways to prevent cyberbullying?

                     5.  What are the key features of Skype?
                     6.   Priya is looking to buy a Smart Home. She wants to know the benefits of buying a Smart
                        Home. Help her by explaining any one benefit of the Smart Home?
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