CWNA Exam 1

1. What are some results of multipath interference?
2. A standard measurement of frequency is called decibel
3. Which of the following is caused by partial blockage of the RF signal, such as a building that sits between a transmitting radio and a receiver?
4. Which behaviour can be described as an RF signal reflecting in multiple directions when encountering an uneven surface?
5. There is an inverse relationship between which of the following?
6. Which of the following is a measure of the strongest signal that is radiated from an antenna?
7. Which of the following is the difference in decibels between the received signal and the background noise?
8. Which of the following can be characterized simply as the signal’s height, strength, or power?
9. RF loss is caused by which of the following factors?
10. Which of the following are the effects of voltage standing wave ratio?
11. As the transmitted signal propagates, it's power level increases at a rate inversely proportional to the distance travelled
12. Which of the following is the background level of radio energy on a specific channel?
13. If a radio receives a signal of –70 dBm and the noise floor is measured at –85 dBm, what would be the SNR value?
14. The 802.11 RSSI measurement parameter can have a value from
15. If your access point is configured to transmit at 36 mW and the antenna is rated for 3 dBi of passive gain, the amount of power that will radiate out of the antenna (EIRP) will be?
16. Passive gain uses extra amplification and does not rely on the direction of the antenna for increased RF energy
17. Which of the following system consists of multiple radio chains, with each radio chain having its own antenna?
18. Which of the following refers to the polar chart of an antenna as viewed straight from the side to see the areas of coverage?
19. What is the definition of the vertical beamwidth of an antenna?
20. Which antennas are semi-directional?
21. One of the disadvantages of Omni-directional antennas is that they typically have a shorter range due to the signal being spread so broadly
22. Which of the following determine the size of the Fresnel zone?
23. Which organization created the 802.11 standard and subsequent WLAN amendments?
24. Which organization examines the different vendors equipment and make sure that they would inter-operate with other vendor products?
25. The original 802.11 standard defines which of the following three Physical layer specifications?
26. Which of the following methods of authentication are defined in the original 802.11 standard?
27. QAM modulation is a hybrid of which of the following modulation techniques?
28. In QPSK, two bits are modulated at once allowing the signal to carry twice as much information as compared to BPSK
29. Dynamic frequency selection is defined for which of the following reasons?
30. Which of the following is a logical name used to identify an 802.11 wireless network?
31. Which of the following data unit consists of MAC header, frame body and FCS or frame check sequence field?
32. In passive scanning, the client station transmits management frames known as probe requests to search for an access point
33. Which of the following means that the client station has established layer 2 connectivity with the AP and joined the BSS?
34. Which of the following are the components of distributed coordinated function?
35. Match the interframe space with it's description
Short interframe space
Used by QoS stations

Unselect

Used with frame corruption

Unselect

Lowest priority

Unselect

Second highest priority

Unselect

DCF interframe space
Used by QoS stations

Unselect

Used with frame corruption

Unselect

Lowest priority

Unselect

Second highest priority

Unselect

Arbitration interframe space
Used by QoS stations

Unselect

Used with frame corruption

Unselect

Lowest priority

Unselect

Second highest priority

Unselect

Extended interframe space
Used by QoS stations

Unselect

Used with frame corruption

Unselect

Lowest priority

Unselect

Second highest priority

Unselect

36. Which of the following PoE standard is known as PoE+ and provides 25.5 watts?
37. Which term is used to define the total power required of the powered device or the total power available in power-source equipment?
38. Clients on a different channel within hearing range can cause co-channel interference?
39. Match the following terms with the correct description
Control Plane
Devices management and monitoring

Unselect

Includes routing and switching protocol

Unselect

Focused on user data transfer

Unselect

Management Plane
Devices management and monitoring

Unselect

Includes routing and switching protocol

Unselect

Focused on user data transfer

Unselect

Data Plane
Devices management and monitoring

Unselect

Includes routing and switching protocol

Unselect

Focused on user data transfer

Unselect

40. Which of the following are the main components of the 802.1X authorization framework?
41. Simultaneous Authentication of Equals or SAE replaces PSK authentication in WPA3

 
42. Identify the authentication and encryption solutions that are defined by WPA3
43. Which of the following offers encrypted communication for Wi-Fi networks without passwords when using WPA3?
44. Which of the following tools can measure the amplitude and frequency space of electromagnetic signals?
45. Protocol analyzers are useful for the following:
46. How layer 2 retransmissions affect the wireless LAN?
47. The cyclic redundancy check or CRC will pass even if a collision occurs or any portion of a unicast frame is corrupted
48. Which of the following refers to the policy of allowing employees to bring personally owned devices, such as smartphones, tablets and to their workplace?
49. Spectrum analyzers are used for which of the following?
50. How many non-overlapping channels are provided by a 2.4 GHz frequency band?

 

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