Ethernet, Wi-Fi, and Performance
- Explain local media, switching, and performance measures
- Apply the idea to evidence from a realistic technology scenario
- Justify a decision using security, reliability, cost, and user impact
Ethernet, Wi-Fi, and Performance
Bandwidth is capacity, throughput is achieved data rate, latency is delay, jitter is delay variation, and loss is missing data. Ethernet and Wi-Fi share local access but behave differently: switches forward frames by MAC address, while wireless clients share radio spectrum and face interference.
Decision lens
Strong technical decisions connect evidence → mechanism → impact → response. Identify what the evidence shows, explain the system behavior that produced it, state the likely effect on people or data, and choose a response that addresses the cause without creating unnecessary disruption.
A video call uses only 3 Mbps on a 200 Mbps connection but freezes whenever a microwave runs.
- 1.Raw bandwidth is sufficient.
- 2.Radio interference can cause retries, loss, and jitter.
- 3.Compare wired and wireless tests near the same time.
- 4.Change channel or band, improve access-point placement, or use Ethernet for the call.
Which measure describes variation in packet delay?
Which response best demonstrates complete reasoning about local media, switching, and performance measures?
For a scenario about local media, switching, and performance measures, identify the decisive evidence before naming a response. A defensible conclusion here is: The evidence points to wireless quality, not insufficient advertised internet bandwidth.
Answer the 2 checkpoints as you read.
Sign in to save your progress