Understanding Network Bandwidth and Latency

The video explores factors affecting computer network performance, including bandwidth, user numbers, transmission media, error rates, and latency. Bandwidth is the data amount sent in a given time, not speed. More users can slow networks if bandwidth is insufficient. Wired connections offer higher bandwidth than wireless, with fiber-optic cables outperforming copper. Error rates increase with unreliable connections, requiring data retransmission. Wireless signal quality depends on device range and environment, while copper cable quality depends on material and length. Latency, the delay in data transmission, is caused by network bottlenecks and hardware speed differences.

What does bandwidth measure in a network?

• The speed of data travel

• The type of transmission media used

• The amount of data sent and received in a given time

• The number of users on a network

How can bandwidth be visually compared?

• A river and a stream

• A wire and a cable

• A road and a highway

• A straw and a drainpipe

What happens when too many users are on the same network?

• The network may slow down

• The network speed increases

• The network becomes more secure

• The network bandwidth increases

Which type of connection generally has higher bandwidth?

• Copper cable connections

• Wireless connections

• Satellite connections

• Wired connections

What is a consequence of less reliable connections?

• Higher bandwidth

• Reduced network latency

• Increased data errors

• Faster data transfer

What affects the signal quality of wireless connections?

• The number of users

• The length of the cable

• The type of copper used

• The range from the access point

What is latency in a network?

• The speed of data transfer

• The delay in data transmission

• The number of users on a network

• The type of transmission media used

What can cause latency in a network?

• Using high-quality cables

• Bottlenecks in network infrastructure

• Increasing bandwidth

• Reducing the number of users