Question

please Teacher help me with this question step by step please and explain everything my Teacher?

1. What is the channel frequency? To find the frequency, expand the Radiotap header of any frame and look for the Channel frequency.

2. What rates are used? Give an ordered list of rates from lowest to highest. Hint: you can click the Rate column to sort by that value.

3. What is the range of RSSI and hence variation in SNRs in the trace? Give this as the strongest and weakest RSSI and the dB difference between them.

4. What is the BSS ID used by the most active wireless conversations? A BSS ID value identifies an AP, so this BSS ID identifies the most active AP, presumably the AP we are monitoring. To help find it, you can sort on the source or destination address by clicking on the column heading.

5. List in the order they are sent the IEEE 802.11 fields in an Acknowledgement frame and their lengths in bytes. Do not break down the Frame Control field into subfields, as we have already looked at these details.

6. Give an estimate of the retransmission rate as the number of retransmissions over the number of original transmissions. Show your calculation.

7. What data rates does the main AP support? The rates are listed under tagged parameters.

8. What are the Type and Subtype values of Association Request / Association Response frames?

9. What are the Type and Subtype values for the Probe Request / Probe Response frames?

Answer 1

1. frequency channel is the band used by the customer from a total available band or spectrum of frequecy e.g 2.4 ghz you can expand the expand the Radiotap header of any frame and look for the Channel frequency and may something like 2.462Ghz or 2.4Ghz It is known as “802.11b/g channel 11”.