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5.  Give one advantage and disadvantage to each of Bus and Star topology.                       [2022]
         Ans.  Start Topology:
              (i)  Advantage: Easy to install
              (ii)  Disadvantage: More cables required
              Bus Topology:
              (i)  Advantage: Short Cable length
              (ii)  Disadvantage: Difficult to detect a fault

           6.  ABC International School, Delhi has different wings Administrative Wing (W1), Primary Wing (W2), Middle Wing(W3) and
              Secondary Wing(W4) as shown in the diagram:                                                  [2022]



                               ADMINISTRATIVE             PRIMARY WING
                                 WING (W1)                     (W2)

                                                                                     MUMBAI
                                                                                     BRANCH


                                  MIDDLE                    SECONDARY
                                 WING (W3)                  WING (W4)




               The school also has a branch in Mumbai. The school management wants to connect all the wings as well as all the computers
              of each wing (W1, W2, W3, W4).
              Distance between the wings are as follows:

                                      W3 to W1                85 m
                                      W1 to W2                40 m
                                      W2 to W4                25 m
                                      W4 to W3                120 m

                                      W3 to W2                150 m
                                      W1 to W4                170 m

              Number of computers in each of the wing:

                                      W1                      125
                                      W2                      40
                                      W3                      42
                                      W4                      60

              Based on the above specifications, answer the following questions:
              (i)  Suggest the topology and draw the most suitable cable layout for connecting the Delhi branch’s wings.
              (ii)  Suggest the kind of network required (out of LAN, MAN, WAN) for connecting
                  a. Administrative Wing (W1) with Middle Wing (W3)
                  b. Administrative Wing (W1) with the Mumbai branch.
              (iii)  Suggest the placement of the following devices with justification:
                  a. Repeater
                  b. Switch/Hub


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