1. What determines the level of the ground electromagnetic wave signal at the receiving point?

2. Can the signal level be in units of minus sign? Justify your answer.

3. Whether the received power level can be greater than the transmitted power level. Justify your answer.

4. What factors of attenuation can be accommodated by different models of radio channel. List 6.

5. Give and discuss the Shannon formula defining the bit rate of the radio channel.

6. What is RU in 802.11ax standard. How many users can RU. What spectrum resources are dedicated to one RU.

7. Describe new solutions applied in the 802.11n standard.

8. What is the impact of overlapping channels in the 2.4 GHz band on the level of interference in wifi networks?

9. What is the cause of collision in wifi networks and what are the effects - explain.

10. Explain what is meant by accountability in ICT systems.

11. List two basic elements that require security in wireless networks, and explain why.

12. List and describe the two biggest threats in wifi networks.

13. What value do we use to determine the location? What is the triangulation method?