Hi pupil here's your answer ::
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☆ Co-axial cable consists of a core wire shielded by a dielectric insulator which is further covered by and Outer conductor and plastic sheath.
☆ Provides low bandwidth.
☆ It cannot be used for long distance transmissions.
☆ It gets affected by atmospheric and electromagnetic interferences.
☆ It can be tapped and hence data is not secure.
☆ Optical Fibre Cable consists of thin strands of Glass like material design to carry light.
☆ Provides very high bandwidth.
☆ It has complete immunity to atmospheric and electromagnetic disturbances.
☆ It cannot be tapped and hence data is secure.
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Hope this helps. . . . . . . . ☺☺