Which of the following is like visible light?
a) Wi-Fi
b) WiMAX
c) Bluetooth
d) infra-red
Which of the following are applications of infrared?
a) car locking system
b) home security systems
c) remote control system
d) all of these
Long Distance Wireless Communication Technologies
How many long-distance wireless communication technologies?
a) one
b) two
c) three
d) four
Explanation: cellular communication, global positioning system
Cellular Communication
Which of the following technologies are included in cellular technology?
a) mobile telephone
b) personal communication system
c) wireless web application
d) all of these
