Communication Technologies - Quiz

The study of the transmission of information or messages through different systems is called

• science

• mathematics

• communications

• engineering

The process of converting a message into a code. This keeps the message private to anyone who does not have the key to the code.

• decryption

• encryption

• digital

• analog

A signal that uses binary code (1s and 0s). It provides a constant and consistent signal.

• analog

• digital

• binary

• encrypted

A signal that is a continuous wave, varying in strength or frequency (includes the human voice and FM radio).

• decrypted

• encrypted

• digital

• analog

An electronic device that produces radio waves - or the device that sends the message.

• receiver

• transmitter

• encoder

• digital signal

Device that captures radio signals to convert signals into a usable or readable form

• decoder

• receiver

• transmitter

• communication

A device, circuit, software program, or person that converts information from the source into another format to prepare for transmission.

• transmitter

• receiver

• decoder

• encoder

A device that converts signal into sound, pictures, or readable text for the receiver.

• encoder

• decoder

• transmitter

• source

Type of electromagnetic radiation, not visible to the human eye, that is used for communication technologies, such as television, mobile phones and radios.

• fiber optics

• micro waves

• infrared waves

• radio waves

A short range technology that can connect multiple devices such as smartphones and speakers in a small area.

• Infra-red

• Wi-Fi

• Drone

• Bluetooth