Forward channel
Switching technique
Roamer
Guard channel
Answer is Right!
Answer is Wrong!
The correct answer is: B. Switching technique.
Handoff is a switching technique used in cellular networks to transfer a call from one cell to another as the mobile phone moves from one cell to another. This is necessary to ensure that the call remains connected as the mobile phone moves around.
The other options are incorrect because:
- A. Forward channel is a channel used by the base station to transmit data to the mobile phone.
- C. Roamer is a mobile phone that is not registered to the home cell.
- D. Guard channel is a channel used to detect interference.
I hope this helps!