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Assertion Reasoning Based Questions


               The following questions are Assertion(A) and Reasoning(R) based questions. Mark the correct choice as
              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.  Assertion (A):  A modem is a device used to connect to Internet.
              Reasoning (R):  Modem stand for Modulator Demodulator
           2.  Assertion (A):  When your mobile is connected to your laptop via bluetooth, a PAN is  formed.
              Reasoning (R):  A PAN stands for Personal Area Network
           3.  Assertion (A):  Router and gateway both are similar network devices.
              Reasoning (R):  Multiple LANs and WANs are joined through network devices to form a WAN.
           4.  Assertion (A):  A network is formed when multiple devices (called nodes) are connected together.
              Reasoning (R):  A node is connected to a network through an RJ-45 connector.
         Ans.  1. b  2. a  3. d  4. a



                                                  Assessment


        A.  Multiple Choice Questions
           1.  In a WAN, a router can be _________.
              a.  Only wired
              b.  Only wireless
              c.  Either wired or wireless
              d.  None of the above as a router is used only in a LAN
           2.  In which of the following topologies the entire network load is on a single central cable?
              a.  Star                 b. Bus                 c. Tree                d. Mesh

           3.  In which of the following network topologies are all nodes connected to a single central node?
              a.  Bus                  b. Tree                c. Star                d. Ring
           4.  In which topology failure of any one node brings down the entire network?
              a.  Bus                  b. Ring                c. Star                d. Tree
        B.  State whether the following statements are True or False:
           1.  WAN covers smaller geographical area than MAN.                                           _________
           2.  A network that consists of both LAN and MAN is called a WAN.                             _________
           3.  If the computer of a school library is connected to Internet, then the type of network will be WAN.    _________
           4.  Communication is unidirectional in case of ring topology.                                _________
           5.  Infrared light has frequencies greater than visible light.                               _________
           6.  Bandwidth is the difference between lowest and highest frequencies.                      _________
           7.  In case of simplex transmission, data transfers in both directions on a network.         _________

           8.  Guided medium is the physical medium of data transfer.                                   _________
           9.  Optical fibres are noise resistant.                                                      _________
          10.  An active hub intensifies the signal before forwarding it further.                       _________
        C.  Fill in the blanks.
           1.  _______ refers to Wireless Fidelity and it enables us to connect to the iSP without any cable.
           2.  The technique of switching in which data is divided into small packets is ____________ switching.

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