What is the speed of infra-red?
a) 100 Kbps-4 Mbps
b) 100 Kbps-3 Mbps
c) 100 Kbps-2 Mbps
d) 100 Kbps-1 Mbps
Explanation: Kbps: Kilobyte per second, Mbps: Megabyte per second
Which of the following are examples of infra-red waves?
a) exchanging emails
b) sending command signals
c) transmitting images
d) all of these
Communication Devices
A device that can send and receive data over the network is called….
a) sending device
b) receiving device
c) communication device
d) none of these
Communication devices can convert digital signal into…….
a) radio signal
b) analog signal
c) microwave signal
d) none of these
Communication devices can convert analog signal
into……
a) radio signal
b) analog signal
c) microwave signal
d) digital signal
