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1. You are onsite with a client to perform a post-deployment site survey. When verifying a multiple channel VoWiFi deployment using a VoWiFi handset, which aspect is most important?

2. Which protocols can be used to tunnel 802.11 user traffic from access points to WLAN controllers or other centralized network servers? (Choose all that apply.)

3. What is the traditional data-forwarding model for 802.11 user traffic when WLAN controllers are deployed?

4. You were previously onsite at XYZ's facility to conduct a pre-deployment RF site survey. The WLAN has been deployed according to your recommendations and you are onsite again to perform, a post-deployment validation survey.

When performing this type of post-deployment RF site survey voice over Wi-Fi, what is an action that must be performed?

5. In a long-distance RF link, what statement about Fade Margin is true?

6. When implementing an 802.1X/EAP RSN network with a VoWiFi solution, what is needed to avoid latency issues during roaming?

7. What are some results of multipath interference? (Choose all that apply.)

8. In an 802.11n 2.4 GHz BSS, what prevents each station from using the full network data rate (e.g. 216.7 Mbps) for user data when multiple clients are actively exchanging data with the AP?

9. A VoIP telephone is connected to a 24-port PoE midspan PSE.

If the telephone does not provide a classification signature, how much power will the PSE provide to the telephone?

10. Which of these measurements are taken for indoor coverage analysis? (Choose all that apply.)

11. Which of the following statements are true? (Choose all that apply.)

12. What is the difference between association frames and reassociation frames?

13. Which of the following are good uses for portable networks? (Choose all that apply.)

14. The basic architecture of any MDM solution consists of:

15. What problems may exist for a multiple channel architecture (MCA) WLAN when its APs are all operating at full power (typically 100mW)? (Choose 2)

16. Which ESS design scenario is required by the IEEE 802.11-2020 standard?

17. The IEEE 802.11-2012 standard defines communication mechanisms at which layers of the OSI model? (Choose all that apply.)

18. What wireless networking term describes the increase of RF energy in an intentional direction with the use of an antenna?

19. When using a WLAN hotspot, company employees should do which of the following to ensure security back to your corporate network?

20. Which of the following information is included in a probe response frame? (Choose all that apply.)

21. Which protocol is used by iOS and macOS devices for over-the-air provisioning of MDM profiles using certificates and SSL encryption?

22. What three cipher suites are specified by the IEEE 802.11-2012 standard? (Choose 3)

23. Which one of the following 802.11 PHYs is more likely to be used in an industrial deployment but not likely to be used in standard office deployments?

24. Samantha received a gaming system as a gift. She would like to have it communicate with her sister Jennifer's gaming system so that they can play against each other.

Which of the following technologies, if deployed in the two gaming systems, should provide for the easiest configuration of the two systems to communicate with each other?

25. What is the channel and band of a Wi-Fi transmission whose center frequency is 5.300 GHz?

26. What is required when operating 802.11ax APS in the 6 GHz band using passphrase-based authentication?

27. A robust security network (RSN) requires the use of which security mechanisms? (Choose all that apply.)

28. Professor Perry Correll has an Ethernet switch that is compliant with 802.3at. He is having problems with his APs randomly rebooting.

Which of the following could be causing his problems?

29. What terms accurately complete the following sentence?

The IEEE 802.11-2012 standard specifies mandatory support of the ___________ cipher suite for Robust Security Network Associations, and optional use of the ___________ cipher suite, which is designed for use with pre-RSNA hardware.

30. If the access points transmit on the same frequency channel in an MCA architecture, what type of interference is caused by overlapping coverage cells?

31. The WonderPuppy Coffee Company has hired you to make recommendations about deploying wireless hotspots inside 500 coffee shops across the country.

What solutions might you recommend? (Choose all that apply.)

32. What type of signal is required to carry data?

33. What are some of the possible negative effects of an impendence mismatch? (Choose all that apply.)

34. What frame type is used to reserve the wireless medium for the transmission of high data rate frames that may not be understood by all clients connected to the BSS?

35. Physical carrier sense uses which two thresholds during the clear channel assessment to determine if the medium is busy?

36. Which new power-management method defined by the 802.11n amendment conserves power by powering down all but one radio?

37. 802. 11ax (HE) introduces Resource Units that can be used to allow communications with multiple devices at the same time, on the same channel, in the same BSS.

What feature of 802.1 lax provides this functionality?

38. The client devices that connect to your network include a mix of dual-band 802.11n and 802.11ac, single-band 802.11b/g/n, and some 802.11a/g/n. Your access points are configured with the same SSID on both the 2.4 and 5 GHz bands. The APs are also configured to prioritize client connectivity to 5 GHz.

How does an AP perform band steering to encourage clients to use 5 GHz?

39. Based on RSSI metrics, concentric zones of variable data rate coverage exist around an access point due to the upshifting and downshifting of client stations between data rates.

What is the correct name of this process, according to the IEEE 802.11-2012 standard?

40. An RF signal sometimes bends as it passes through some material other than free space.

What is the term that describes this behavior?

41. What are the security options available as defined in the original IEEE Std 802.11-1999 (R2003)? (Choose all that apply.)

42. SSID = Corporate / BSSID = BB:BB:BB:BB:BB:BB /

VLAN = 44 / Subnet = 192.168.44.0 / RF Channel = 6 / User Type B

43. Several users are complaining that their VoWiFi phones keep losing connectivity.

The WLAN administrator notices that the frame transmissions of the VoWiFi phones are corrupted when listened to with a protocol analyzer near the access point but are not corrupted when listened to with the protocol analyzer near the VoWiFi phone.

What is the most likely cause of this problem?

44. Which 802.11 amendments provide for throughput of 1 Gbps or higher? (Choose all that apply.)

45. When performing a validation survey for a Multiple Channel Architecture (MCA) system in a multi-tenant building with five floors, what aspect should you, as the surveyor, keep in mind?

46. To reduce airtime consumption and provide for better capacity in the 5 GHz band, which data rates are recommended to be selected as basic rates? (Choose all that apply.)

47. ABC Company has a 2.4 and 5 GHz WLAN deployment. DFS functionality is enabled as required by the regulatory domain and APs use DFS channels as long as radar is not detected. Band steering is also enabled to encourage dual-band clients to use frequency bands with more capacity.

Your performance analysis shows that many dual-band VoWiFi client devices will move back and forth between 2.4 and 5 GHz as the users roam throughout the building. All APs have 2.4 and 5 GHz radios enabled with transmit power adjusted to accommodate relatively similar cell sizes. This “band hopping” behavior is viewed by network staff to be undesirable.

What is the most likely cause of the unpredictable client band selection behavior?

48. What does 802.1X/EAP provide when implemented for WLAN security? (Choose all that apply.)

49. What mechanism can be used if the guest VLAN is not supported at the edge of the network and only resides in A DMZ?

50. Which WLAN architectural models typically require support for 802.1Q tagging at the edge on the network when multiple user VLANs are required? (Choose all that apply.)

51. The basic service set identifier address can be found in which topologies? (Choose all that apply.)

52. Requiring all frames to be transmitted as A-MPDU frames increases performance due to which of the following? (Choose all that apply.)

53. What scenarios might result in a hidden node problem? (Choose all that apply.)

54. When an RF signal bends around an object, this propagation behavior is known as what?

55. What factor will have the most significant impact on the amount of wireless throughput available to each station within a BSS?

56. What is the recommended received signal and SNR when providing for VoWiFi client communications?

57. What are of some of the common security capabilities often integrated within access points deployed in a distributed WLAN architecture?

58. You are designing an 802.3at-compliant network and are installing a 24-port Ethernet switch to support 10 Class 1 VoIP phones and 10 Class 0 APs.

The switch requires 500 watts to perform its basic switching functions.

How much total power will be needed?

59. The ___________ is the initial component in the creation of the wireless medium.

60. To double the distance of a signal, the EIRP must be increased by how many dBs?

61. Which field in the MAC header of an 802.11 frame resets the NAV timer for all listening 802.11 stations?

62. Which of the following statements is not true regarding the number of subcarriers in the following channels? (Choose all that apply.)

63. What standard is referenced in the 802.11-2016 specification and is recommended for robust WLAN client security?

64. When is an ERP (802.11g) AP required by the IEEE 802.11-2012 standard to respond to probe request frames from nearby HR-DSSS (802.11b) stations? (Choose all that apply.)

65. Wi-Fi 4 radios using 802.11n (HT) technology can operate on which frequency bands? (Choose all that apply.)

66. Identify the security solutions that are defined by WPA2. (Choose all that apply.)

67. How does transmit beamforming (TxBF) use multiple MIMO antennas to increase range?

68. Which of these WLAN architectures may require the use of an NMS server to manage and monitor the WLAN?

69. What type of security can be used to stop attackers from seeing the MAC addresses used by your legitimate 802.11 WLAN devices?

70. Which of these attacks are considered denial-of-service attacks? (Choose all that apply.)

71. What are some examples of control plane intelligence? (Choose three)

72. What are some objects or materials that are common causes of reflection? (Choose all that apply.)

73. Scott is an administrator at the Williams Lumber Company, and his WIPS has detected a rogue access point.

What actions should he take after the WIPS detects the rogue AP? (Choose the best two answers.)

74. Which type of wired access switch technology is the most important consideration when deploying 4×4:4 or 8×8:8 Wi-Fi 6 access points?

75. A PD must be capable of accepting power with either polarity from the power supply.

In mode A, on which conductors/wires does the PD accept power?

76. What are the required data rates of an OFDM station?

77. When using a hotspot, you should do which of the following to ensure security back to your corporate network?

78. CCMP encryption uses which AES key size?

79. Select two components that should be mandatory in every remote access wireless security policy.

80. dBi is an expression of what type of measurement?

81. ABC Company is planning to install a new 802.11ac WLAN, but wants to upgrade its wired infrastructure first to provide the best user experience possible. ABC Company has hired you to perform the RF site survey.

During the interview with the network manager, you are told that the new Ethernet edge switches will support VoIP phones and 802.11 access points, both using 802.3 PoE.

After hearing this information, what immediate concerns do you note?

82. 802.11 collision detection is achieved using which technology?

83. Which of the following are valid ISM bands? (Choose all that apply.)

84. The 802.11 legacy standard defines which wireless security solution?

85. A WIPS uses which four labels to classify an 802.11 device? (Choose the best four answers.)

86. dBi is a measure of what?

87. Which of the following 802.11 frames carry an MSDU payload that may eventually be transferred by the integration service into an 802.3 Ethernet frame?

88. CSMA/CA and DCF define which mechanisms that attempt to ensure that only one 802.11 radio can transmit on the half-duplex RF medium? (Choose all that apply.)

89. When is an 802.11ac AP transmitting on 5 GHz required by the IEEE 802.11-2020 standard to respond to probe request frames from nearby client stations? (Choose all that apply.)

90. What type of interference is caused by overlapping coverage cells with overlapping frequencies?

91. Which two 802.11 topologies require the use of an AP?

92. In WLAN security, which authentication methods always create Layer 2 dynamic encryption keys? (Choose 2)

93. What phrase defines Equivalent Isotropically Radiated Power (EIRP)?

94. What are some popular 802.11 applications used in the healthcare industry? (Choose all that apply.)

95. What documents might be needed prior to performing an indoor site survey for a new wireless LAN? (Choose all that apply.)

96. In the 1970’s _______ had a wireless communication model for transmitting between islands.

97. If an 802.11 RF transmission reaches a receiving antenna simultaneously by direct and reflected paths, what effect will the reflected signal have on the signal that took the direct line-of-sight path?