Respuesta :

Explanation:

Repeater:

  • It is used for the regeneration and transmission in case the previously transmitted signal is weak .
  • It takes higher input power , to provide lower output power .
  • It uses a static environment .
  • It is used for the reduction or elimination of noise .
  • It works on the the physical layer of OSI model.

Amplifier:

  • It is basically used to increase the amplitude or the strength of the signal .
  • It takes lower input power , to provide higher output power .
  • It uses in a mobile and remote network .
  • It  increases the amplitude of the signal of noise .
  • It works in wireless communication .

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