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3.  POP protocol is ......................................
                         i.  used for composing an email message
                         ii.  used in receiving incoming emails by pulling the message from server to client
                         iii.  used in sending outgoing emails by pushing the message from client to server
                         iv.  used to transfer files from server to client
                     4.  Which of the following Internet protocols provides secure data transmission between server and browser
                         with the help of encryption?
                         i.  HTTP                                            ii.  HTTPS
                         iii.  TELNET                                        iv.  ARPANET
                     5.  The full form of POP (email protocol) is ......................................
                         i.  Post Order Protocol                             ii.  Push Order Protocol
                         iii.  Post Office Protocol                          iv.  Pull Over Protocol

                   Ans.   1. iii.   2. iii.   3. ii.   4. ii.   5. iii.

                 B.  Read the case study given below and attempt any 4 sub-questions (out of 5). Each sub-question carries 1 mark.
                       Mr. Harish, an accountant, works in an IT firm and due to the pandemic, has been asked to work from home. He
                     has set up his online office at his home. He has purchased a laptop, web camera and other accessories. Now he
                     has started working from home and performs his various duties online.          [CBSE SQP 2021-22]
                     1.     Mr. Harish wants to hold an online meeting with the company’s client such that he can interact as well as
                         see them. Which web service should he avail?
                     2.     Mr. Pritish sends an email to Harish requesting him to prepare the balance sheet. Which network protocol
                         is involved during this email communication?
                     3.     The company’s financial head needs to send some high security documents to Mr. Harish. He uses an
                         application which supports the ..................................... protocol.
                     4.     In order to gather some information on latest accounting trends, Mr. Harish has to do some research. He
                         can do this by locating sites online using a ......................................
                     5.     Joseph, the company secretary sends a link to Mr. Harish which contains important company files. What
                         should he do in order to access the files?

                   Ans.   1. Video conferencing service    2.  SMTP (Simple Mail Transfer Protocol)     3. SSH(Secure Shell)
                         4. Web browser    5. Click on the link and log in (if required) to download the files.


                 Unsolved Exercise



                                                              SECTION A
                                                      (Objective Type Questions)
                 A.  Multiple choice questions.

                     1.    The standard internet protocol used for  transferring  information from source to destination is  .
                         .....................................

                         i.  TELNET                                          ii.  TCP/IP
                         iii.  ARPANET                                       iv.  FTP
                     2.  The search keyword to find out information about all the cars but not hatchback will be ...................................
                         i.  Information on Cars-Hatchback                   ii.  Cars exclude Hatchback
                         iii.  Cars and Hatchback cars                       iv.  Information on cars minus OR hatch back cars




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