Computer Network/Data Communication

Types of communication media

• Twisted and coaxial cables

• duplex

• Bluetooth

• wired and wireless

This is the process of using communication facilities such as the telephone and microwave relays to send data over a far distance without changing it.

• wireless communication

• Telecommunication

• Data communication

• wired communication

The two basic types of computer networks are;

• MAN AND LAN

• STAR TOPOLOGY

• LAN and WAN

• BUS TOPOLOGY

radio-waves, microwave, infrared, satellite and bluetooth are examples of which media?

• wired

• television

• wireless

• computer

Full Duplex data flow means:

• data travels in both directions, but only one direction at a time.

• data travels in only one direction.

• - data travels in both directions at the same time.

• data does not travel.

Which of the following is NOT a type of transmission channel?

• Coaxial cable

• Twisted pair

• Modem

• Microwave

Persons at a KFC restaurant realise that they were able to access the internet on their phones. This would be considered a

• MAN

• Hot Spot

• LAN

• Satellite

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

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

• Modem/Demodem

• Modulation/Demodulation

• Analoging

• De-Digitizing