Network Bandwidth

A computer network is a system of:

• two or more computing devices connected to one another

• Data transfer and information storage

• Sharing devices like scanners

• A whole lot of individual machines working on their own

Fibre optic cables consist of very fine strands of glass or plastic fibre; transmitting data via

• magnetic pulses

• light pulses

• electricity

The capacity of data transfer in a system.

• Bandwidth

• Bitrate

• Latency

• Network

The time it takes for a bit to get from sender to receiver.

• Network

• Latency

• Bandwidth

• Bitrate

1 bps is a great bandwidth.

• True

• False

What happens when everyone in your house connects to your wireless access point/router with wi-fi enabled devices?

• The network becomes faster.
• The performance is not affected.
• The network becomes slower.

When does ethernet signal degradation occur?

• When long cables are used this  means the signal decays over a long distance.
• Nothing happens to signal degradation.

Define the term 'wi-fi'.

• When two or more LANs are connected together over a wide area.
• A form of Internet access that uses the facilities of the public switched telephone network (PSTN) to establish a connection to an Internet service provider (ISP) by dialing a telephone number on a conventional telephone line.
• The name of a popular wireless networking technology that uses radio waves to provide wireless high-speed Internet and network connections.
• A local or restricted communications network, especially a private network created using World Wide Web software.

When does radio interference occur on a wireless network?

• Wi-fi signals have a maximum range, with 5GHz signals having a shorter range than 2.4GHz signals.
• If something else is transmitting on the same frequency as a wi-fi network, like a microwave or a faulty electric motor, this lowers the performance of any wi-fi devices trying to communicate on that frequency.

What can physically block a wi-fi signal?

• Solid brick walls
• Signals get weaker over large distances