Podcast
Questions and Answers
What type of communication uses electromagnetic waves to carry signals?
What type of communication uses electromagnetic waves to carry signals?
- Infrared
- Microwaves
- Radio waves (correct)
- Bluetooth
Which wireless communication medium operates at a higher frequency and is used for point-to-point communications between cell towers and satellite communications?
Which wireless communication medium operates at a higher frequency and is used for point-to-point communications between cell towers and satellite communications?
- Bluetooth
- Microwaves (correct)
- Radio waves
- Infrared
For short-range communication such as TV remote controls and wireless mice, which form of unguided media is commonly used?
For short-range communication such as TV remote controls and wireless mice, which form of unguided media is commonly used?
- Bluetooth
- Infrared (correct)
- Radio waves
- Microwaves
Which wireless transmission method does not pass through solid walls and provides better security and no interference?
Which wireless transmission method does not pass through solid walls and provides better security and no interference?
What type of wireless transmission requires clear line-of-sight and the use of a parabolic dish?
What type of wireless transmission requires clear line-of-sight and the use of a parabolic dish?
What is the purpose of a multiplexer (MUX) in data communication?
What is the purpose of a multiplexer (MUX) in data communication?
Which technique involves allocating different frequency bands to different signals for simultaneous transmission in separate frequency ranges?
Which technique involves allocating different frequency bands to different signals for simultaneous transmission in separate frequency ranges?
What is the purpose of a demultiplexer (DEMUX) in data communication?
What is the purpose of a demultiplexer (DEMUX) in data communication?
What does TDM (Time Division Multiplexing) involve?
What does TDM (Time Division Multiplexing) involve?
What distinguishes Statistical (asynchronous) TDM from Synchronous TDM?
What distinguishes Statistical (asynchronous) TDM from Synchronous TDM?
