…. are radio waves that provide a high-speed transmission.
a) microwave
b) radio wave
c) infra-red wave
d) none of these
The microwave
stations need to be placed within
a) 10-20 miles
b) 20-30
miles
c) 10-40 miles
d) 10-50 miles
…. technology allows computing devices to communicate via short range wireless signals.
a) radio wave
b) microwave
c) infra-red
d) none of these
The speed of infra-red is
a) 100 Kbpd-4 Mbps
b) 100 Kbps-3 Mbps
c) 100 Kbps-2 Mbps
d) 100 Kbps-1 Mbps
Examples of use of infra-red.
a) exchanging emails
b) sending command signals
c) transmitting images
d) all of these
A……………is a space station that receive microwave signals from earth microwave station.
a) radio signal
b) microwave signal
c) satellite
d) none of these
