Data Communication and Network

Communication without wires, in a straight line is accomplished using:

• Twisted pairs
• Microwaves
• Satallite
• Fibre Optics

Devices using bluetooth to transfer data must be placed no more than ________meters apart.

• 100
• 50
• 10
• 30

A modem contained within a computer system unit is called a/an_____________modem.

• External
• Internal
• Wireless
• Wired

Data is transmitted using light through a(n) _____________cable.

• Fibre Optic
• Coaxial
• Twisted Pair
• Infra-red

A network than spans a nation or the world is called a____________________.

• LAN
• MAN
• TAN
• WAN

Computers send and receive data in the form of ___________________signals.

• Analog
• Modulated
• Demodulated
• Digital

The conversion from digital signals to analog signals and vice versa is called______________.

• Modem/Demodem

• Modulation/Demodulation

• Analoging

• De-Digitizing

Rules used to allow successful data transmission are called_____________________.

• Interconnections
• Medium
• Protocols
• Networks

The acronym WLAN stands for______________.

• Wi-Fi Local Area Network
• Wireless Local Area Network
• Wide Local Area Network
• Wireless Local Analog Network

Satellite, Microwave and Infrared are types of __________________________.

• Transmission protocols
• Transmission media
• communication modes
• networks