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IT: device to device communication
IT: device to device communication

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4.8 WiFi – a summary

Activity 18: self-assessment

To test your understanding of what you have read so far about WiFi, say whether each of the statements below is true or false.

  1. In ad hoc mode, WiFi stations are connected to a wired network via an access point.

  2. All stations connected to a WiFi network in infrastructure mode will be able to achieve identical data rates.

  3. Every WiFi station requires a MAC address.

  4. Throughput is a term that describes the maximum data rate of a WiFi network.

Answer

Answers

  1. The statement is false. In ad hoc mode, the WiFi network is isolated from any other network.

  2. The statement is false. Data rate is affected by distance from the AP and the presence of any physical barriers, so stations connected to a WiFi infrastructure network are likely to achieve different data rates.

  3. The statement is true. Every WiFi station requires a MAC address so that it can be uniquely identified within the network.

  4. The statement is false. Throughput is a term that describes the effective message data rate. This is lower than the maximum data rate because some of the data capacity is used by protocol overheads and management data.