Which of the following is a concept in mobile communication?

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RRB ALP CBT 2 Electronic Mechanic Previous Paper: Held on 23 Jan 2019 Shift 1
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  1. Triplexing
  2. Duplexing. 
  3. Simplexing
  4. Quadraplexing 

Answer (Detailed Solution Below)

Option 2 : Duplexing. 
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Duplexing: It is a phenomena in computer modes that allows simultaneous transmission and reception in both the directions. 

Simplexing: It is a phenomena in computer modes that allows telecommunication in only one direction. 

Monitor It is an example of Simplex mode as the Monitor can only introduce output.
Telephone/Mobiles  It is example of full duplex as the parties at both ends of a call can speak and be heard by the other party simultaneously.
Walkie-Talkie It is an example of a half-duplex device is a walkie-talkie.
Keyboard It is an example of Simplex mode as the keyboard can only introduce input.
 
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