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1. What is the difference between a Data frame and a QoS-Data frame?

2. A 2.4 GHz access point is configured with basic rates of 5.5 and 11 Mbps.

Which of the following stations could connect to this AP? (Choose all that apply.)

3. What are the advantages of distributed analysis over portable analysis? (Choose all that apply.)

4. When performing protocol analysis, you notice a high number of RTS/CTS frames being transmitted on an HT network. You suspect this may be due to HT protection mechanisms.

Where in the Beacon frame would you look to determine which one of the four HT protection modes the AP is operating in?

5. While performing a packet analysis, you periodically see some CF-End frames along with some CF-End+CF-ACK frames.

Why are these frames occurring? (Choose all that apply.)

6. A station is participating in a mixed-mode network and wants to transmit data. The station is configured to use CTS-to-self as its protection mechanism.

Which of the following frames are transmitted by the station? (Choose all that apply.)

7. Which common feature of a Spectrum Analyzer would be the best to help you locate a non-802.11 interference source?

8. What should the To DS and From DS flags be to set to in an Association Response frame?

9. Which OSI sublayer is responsible for modulation and transmission of data bits?

10. Which of the following is the OUI used by the IEEE in the RSN information element?

11. Which of the following states drains the least battery life?

12. What is the best way to mitigate a leaking office microwave oven causing disruption in your wireless LAN?

13. Which of the following states drains the most battery life?

14. The Long PPDU includes a -bit PLCP Preamble, which consists of a -bit Sync field.

15. What is the purpose of a network analyzer’s expert system?

16. When capturing a packet with the TO DS field set to 1 and the FROM DS field set to 0, what address information does the Address1 field contain? (Choose all that apply.)

17. The graphic shows a packet capture of a successful 802.11 authentication.

In which of the following types of client connections could this not occur?

18. When looking at a packet capture, which of the following address field statements is false?

19. Which Wi-Fi Alliance certification validates many of the robust security network (RSN) mechanisms that the IEEE has designated in the 802.11-2007 standard? (Choose all that apply.)

20. What can you conclude about this frame based on the frame capture graphic shown here? (Choose all that apply.)

21. Which power management method involves the station notifying the AP of its changes from active mode to Power Save mode in order to retrieve buffered unicast frames?

22. An AP without RTS/CTS enabled, a station with an RTS/CTS enabled, and a station with RTS/CTS disabled all have a data frame ready to be transmitted as part of the same BSS.

Which device will transmit first?

23. You are considering the performance of a BSS based on different PHY types used. In the BSS, one device must use ERP as it does not support HT in its 2.4 GHz band.

What is the duration of the interframe space for this ERP device for standard data frame transmissions?

24. Which IFS is used prior to the random backoff timer when a QoS AP or station is about to transmit a frame and a corrupted frame has just been received?

25. What does heuristic-based expert analysis do?

26. Which one of the following portions of information is communicated in the PHY Header?

27. In the data subtype field, by changing the bits b7Cb4 from a binary 0 to a binary 1, which of the following will be added to the basic data frame? (Choose all that apply.)

28. After viewing the frame capture shown here, identify the type of authentication method being used.

29. Prior to using the Block ACK mechanism to transmit QoS data, which of the following is true? (Choose all that apply.)

30. What is the name given to the quiet periods that make up the random backoff timer?

31. What is the element ID of the TIM information element?

32. Which type of power management frame is used only in an IBSS?

33. How many frames are exchanged for 802.11 authentication in the 6 GHz band when WPA3-Enterprise is not used, and a passphrase is used instead?

34. Which of the following contains the same information found with an MPDU?

35. Address filters can select traffic based on which of the following? (Choose all that apply.)

36. How does a VoIP Phone, using WMM Power Save, request data frames buffered at the AP?

37. Where in the packet can you see its access category?

38. Which of the following statements is true regarding PCO?

39. Name two reasons why 802.11 power management is considered inefficient.

40. Why would a STA that supports 802.11k Radio Measurement send a Neighbor Request to an AP?