CWDP-305 Certified Wireless Design Professional Exam Free Dumps

1. When designing a Wi-Fi-based WLAN to support voice in a large office, which design element is of the highest concern for performance?

2. What is the minimum PoE budget required to power 6 APs using IEEE 802.3at with no additional details provided?

3. In high-density environments like stadiums or convention centers, what additional factor must be considered that can attenuate Wi-Fi signals during events?

4. Which document outlines the objectives, scope, and key stakeholders, serving as the official authorization to begin a WLAN design and deployment project?

5. When conducting information gathering for a WLAN design, which document ensures your customer's proprietary information remains confidential and protected from unauthorized disclosure?

6. In WLAN location-based services, which metric, despite being commonly used, offers the lowest accuracy when determining device positions?

7. Your customer uses PSK authentication but needs a more secure, certificate-based solution requiring certificates on both the client and server.

Which EAP method is the most appropriate?

8. When designing a wireless bridge to connect two offices 13 kilometers (approximately 8 miles) apart, which factor must the Wireless Engineer consider to account for Fresnel Zone clearance?

9. While conducting a site survey in a heavy machinery repair facility, what essential gear should you use for safety in this challenging environment?

10. A North American business traveler connects to a hotel's 2.4 GHz SSID in Europe and notices low RSSI from an AP in the room, but experiences no issues with RSSI in the lobby.

What is the most likely reason for the low RSSI in the room?

11. A museum requires its wireless access points to be discreetly integrated into the environment without sacrificing performance.

Which design choice best meets this requirement while maintaining optimal functionality?

12. An engineering firm upgraded from nine 802.11n APs to nine 802.11ac APs, retaining the same channel and power configuration. Despite this, throughput remains unchanged.

What is the most likely reason for the lack of improvement?

13. During a public Wi-Fi session with 10 other users, you run a ping sweep but cannot detect any devices on your subnet.

What feature is likely enabled on the WLAN infrastructure to prevent local communication between clients?

14. While implementing 802.11ax APs in the 6 GHz band, a consultant recommends using WPA2-Personal for VoIP support.

Why is this approach technically inappropriate?

15. While planning for a VoWLAN deployment requiring 25 dB SNR, you measure the noise floor at -88 dBm.

What is the minimum RSSI needed to meet the system's performance requirements?

16. When deploying an Enterprise-class VoWLAN infrastructure, which Access Category (AC) must be used to prioritize voice packets and ensure optimal performance?

17. When using a WLAN design tool with propagation modeling capabilities, what critical step must be performed before adding APs, antennas, and attenuation factors like walls?

18. Your customer's 802.11n laptops cannot detect the SSID in the 5 GHz band in a conference room, but your 802.11ac laptop connects without issue.

What is the most likely explanation for this discrepancy?

19. When designing a static channel plan for an office using voice devices near an airport, which range of channels may be avoided to avoid channel switching when implemented in this environment?

20. Which vertically polarized antenna is best suited for a WLAN infrastructure with access points mounted on a ceiling over 6 meters high, where all client stations operate from the floor level?

21. When using a predictive design tool, you have selected access points (APs) with an antenna gain of 3 dBi and set the transmit power to 25 mW.

What is the EIRP (Effective Isotropic Radiated Power) of the APs in this design?

22. Your customer has selected switches that support 802.3bz MultiGig interfaces and 4x4:4 802.11ac Wave 2 APs with dual-5GHz capabilities. The APs have one MultiGig interface, and some cable runs will exceed 180.5 feet (55 meters).

To support MultiGig speeds, which is the best cabling option?

23. When conducting a site survey for a possible WLAN redesign, you use two Wi-Fi USB adapters for RSSI data collection and two USB spectrum analysis adapters for RF spectrum data. Since your laptop lacks enough USB ports, you connect them via a 4-port powered USB 3.0 hub.

What issue could the use of USB 3.0 cause that might impact your site survey?

24. What is the most cost-effective way to accurately measure the height of a ceiling when the use of a ladder is not permitted?

25. You conducted a site survey using two USB Wi-Fi adapters with a special driver designed for the site survey software. After deployment, the client devices show lower RSSI values compared to the results from your survey.

What is the most likely reason for this discrepancy?

26. When performing an active site survey in an existing WLAN infrastructure, in addition to gathering throughput data, what other important function are you typically testing simultaneously?

27. Why should band steering algorithms allow stations to connect to the 2.4 GHz band after ignoring a certain number of Probe Requests?

28. After designing a WLAN infrastructure using predictive design software, what is the best way to validate the predictive design in the physical space before deployment, assuming time and budget allow for it?

29. Your customer requires a security solution where client credentials are used, not a Protected Access Credential (PAC), and the authentication server must have a certificate with optional client certificate use.

Which EAP (Extensible Authentication Protocol) method is the best fit for these requirements?

30. Your customer requires fast and secure roaming.

Which two types of roaming are specified in 802.11 Fast Transition (FT) that will help meet this goal?

31. Which advantage provided by 802.11n and 802.11ac is not usable in 1x1:1 low-end client devices?

32. When deploying access points (APs) outdoors, which additional component needs to be used that is typically not required in most indoor office deployments?

33. Which document provided to your customer should include all devices and parts that will be used during the deployment of their WLAN infrastructure?

34. What limitation exists when WMM is not enabled on an 802.11 WLAN?

35. When designing for OFDMA, why might the same channel bandwidth result in greater efficiency than that available in 802.11n and 802.11ac?

36. What service must be implemented on your customer's network to authenticate users against an LDAP database before granting access to the WLAN infrastructure?

37. What is the best method of gathering attenuation measurements from wall materials?

38. Which type of authentication and encryption method is mandatory for Voice Enterprise certified devices as specified by the Wi-Fi Alliance?

39. Which document provides detailed instructions for installation technicians on how to properly mount and configure access points (APs)?

40. In addition to a copy of your design, which tools should you provide to ensure the installation team correctly deploys access points (APs) in the specified locations within a multi-floor indoor design?

41. When installing access points (APs) on high ceilings, what is the most common personal protective equipment (PPE) that should be used?

42. You are preparing to perform a site survey for a company that processes meat, but some areas are restricted due to high security.

What should you do in order to proceed with the site survey?

43. Which DHCP option, when required, must be configured to help access points (APs) locate their wireless LAN controller (WLC) during deployment?

44. When deploying a new WLAN infrastructure using Power over Ethernet (PoE) to power the access points (APs), you find that a known good AP is not powering up. You connect your laptop using the same cable without any issues.

What is the most likely reason the AP did not power up?

45. During your first pre-deployment meeting with the deployment team, you hand out the full design documentation to everyone.

What is your primary goal during this meeting?

46. A controller-based WLAN infrastructure has its controller on a different subnet than its access points (APs).

What device must be used to enable communication between the controller and the APs?

47. What power management feature introduced in 802.11ax, but not available in 802.11ac or 802.11n, is designed to improve battery life for WLAN devices?

48. Aesthetics are critical in some environments.

What common installation technique can best meet this requirement in a stadium while not voiding manufacturer warranties?

49. What type of site survey helps determine if roaming is functioning as intended?

50. When performing a frame capture over the air during a voice call, you notice that frames in the downlink direction (from the AP to the client) are not being transmitted with the correct UP (User Priority) value for voice frames, but in the uplink direction (from the client to the AP), they are transmitted correctly.

What is the likely cause of this issue?

51. You are validating client association capabilities to an 802.1X/EAP secure SSID. The RADIUS server's IP address is 10.100.50.25, and the default RADIUS authentication port is being used. None of the clients can associate with the SSID. After verifying that both the server and the RADIUS service are operational, you find that the authenticator (such as the AP or controller) is not communicating properly with the RADIUS server.

What is your next troubleshooting step?

52. During lunch time in the break room of a company, Wi-Fi connectivity on the 2.4 GHz band becomes intermittent. At other times of the day, it works fine.

What is the most likely cause of this issue?

53. After deploying a 5 GHz-only WLAN infrastructure in the USA, using 20 MHz channel widths and all 25 available channels, a manager tests the Guest SSID on his 802.11n tablet. During testing, he experiences several areas with poor RSSI (below -80 dBm) or no signal at all. Upon checking, all APs are operational, and coverage was validated post-deployment.

What is the likely cause of this issue?

54. After designing and deploying a WLAN infrastructure, you notice that co-channel interference (CCI) is causing poor performance in the 2.4 GHz band. Although the WLAN was primarily designed for 5 GHz, 2.4 GHz was included as a best-effort solution. You discover that the implementers did not follow your configuration guidelines.

What can you do to minimize the impact of CCI in the 2.4 GHz band without adding adjacent-channel interference (ACI)?

55. You have performed a validation site survey after deploying a WLAN infrastructure in an All-Wireless-Office. One specific application is experiencing delays after transitioning from wired to wireless connectivity. During validation, you discover that all APs are using 80 MHz channel widths instead of the designed 20 MHz on the 5 GHz band.

What can be done to resolve the delay for this application?

56. What deliverables should be provided to the customer after successfully implementing a WLAN infrastructure?

57. Who should be present from the customer side during the final meeting after successfully implementing a WLAN infrastructure?

58. During a validation site survey, you discover that some access points (APs) have been mounted above the ceiling due to an aesthetic request from the building architect. However, no aesthetics constraints were communicated during the requirements gathering from the main stakeholder of the project.

What is the appropriate course of action?

59. According to IEEE 29148-2018, which of the following is a characteristic of a requirements set that is not a characteristic of an individual requirement statement?

60. You have determined the best mounting locations for APs in a given installation. The facilities manager has asked you to change the locations for several APs due to aesthetic concerns. You suggest mounting the APs in the ideal locations and painting them so they go unnoticed in the environment.

What is a valid recommendation or consideration when painting APs?

61. When deploying long-distance 802.11 bridge links (10 miles / 16 km), what parameter may be critical for improving data flow by reducing retries caused by the long distances?

62. One of your customers plans on providing wireless coverage to a warehouse facility.

After performing an initial walkthrough, you collect the following information:

The central part of the warehouse is between 400 and 600 feet (122 to 183 meters) from the warehouse switches mounted on the walls.

✑ The warehouse storage is composed of metallic racks with varying inventory levels and contents, from electronics and plastic toys to food pallets and juice bottles.

✑ Workers need basic data coverage from their working location, and are not highly mobile.

They usually work from one single aisle, and their laptop is on a cart with wheels.

What would be your one recommendation to provide coverage to the central area of the warehouse?

63. Which definition correctly describes the "local MAC" variation of the centralized WLAN architecture?

64. When a WLAN controller sends an 802.11 frame to a lightweight AP for transmission on the wireless medium, how does it mark the frame for 802.11 QoS priority?

65. When selecting a centralized WLAN architecture, what new problem may arise when you change the data forwarding model from centralized to distributed?

66. Which one of the following is an essential metric to measure when performing a survey and design for VoIP across WLANs?

67. In a manufacturing facility with highly reflective materials, you are planning an upgrade to your existing 802.11b WLAN implementation. You have

chosen a dual- band 802.11n infrastructure product for this purpose.

Your client applications include:

✑ Handheld scanners for inventory management

✑ Tough books (laptops) mounted on forklifts for inventory and workflow management

✑ VoWiFi phones used by select employees throughout the facility

You are evaluating all of the 802.11n enhancements and determining which features to enable for your environment and applications.

In this scenario, what 802.11n enhancement typically should NOT be enabled on the 2.4 GHz radio of the new APs?

68. When live video streaming solutions that transmit simultaneously to more than one recipient are used, what special capability should be considered and configured in all affected WLAN implementations?

69. What VoWiFi implementations frequently require multicast packet delivery support by the WLAN infrastructure?

70. As you plan a WLAN upgrade, you have assessed the network requirements and data signatures of your applications. One of the popular applications used on your network requires high bandwidth and low to medium Wi-Fi loss, but can tolerate moderate latency and jitter.

What application matches this description?

71. Given: The 802.11ac APs you have selected for your public access deployment support many of the PHY and MAC enhancements offered by the 802.11n and 802.11ac amendments. The AP is configured for a single-band (2.4 GHz) and only allows 20 MHz channels. The WLAN radio in the AP is a 3x3 802.11n chip that supports two spatial streams.

What is the maximum MCS rate that could be supported by this AP?

72. 11b clients to use these higher data

rates.

B. Protection mechanisms will always be in use on this network to support 5.5 and 11 Mbps as basic rates.

C. HR/DSSS (802.11b) stations will not be able to associate to the service set.

D. This configuration violates the IEEE specification that defines 6, 12, and 24 Mbps as mandatory data rates for 802.11g/n.

73. Given: As the wireless network administrator for XYZ Company, you are planning to upgrade your aging wireless network infrastructure, as well as some clients, to support 802.11ac. In your research, you have discovered that your new wireless client devices and infrastructure are 802.11ac, WMM, and WMM-PS certified by the Wi-Fi Alliance. Some of your existing client devices are 802.11a/b/g devices that do not support WMM.

Given this information, what scenario is possible when your company's employees begin using both types of client devices on the new WLAN?

74. Transmit beamforming (TxBF)

75. You are tasked with designing the WLAN to accommodate certain high density areas on your university campus where users frequently come and go. With a limited DHCP pool size (subnet mask = 255.255.252.0) for this WLAN subnet, you want to ensure that your DHCP addresses are used

efficiently and are not exhausted, which would prevent new client Layer 3 connections. The DHCP server is a Windows Server 2012 R2 machine.

Your design task is to determine the best configuration to allow as many users as possible while avoiding WLAN service interruptions and also to use the available addresses as efficiently as possible.

What setting would be most effective at achieving this design task?

76. ABC Company has a WLAN controller with 10 controller-based APs; the Voice SSID is configured for centralized data forwarding. Each AP is connected to an access port on a layer-2 Ethernet switch. Each layer-2 switch is uplinked to a single layer-3 core Ethernet switch. The WLAN controller is connected directly to the layer-3 core Ethernet switch. Layer-3 tunnels are created between all controller-based APs and the WLAN controller. A voice server is connected to the layer-3 Ethernet switch.

When a voice-enabled QoS STA sends an IP data packet to a voice server in this scenario, the DSCP value carried in the STA's IP data packet gets mapped to what and by which device?

77. Given: For this fill-in the blank question, each answer option contains an answer for the first and second blanks, separated by a dash "―". Choose the answer option that correctly fills in both blanks in the following sentence.

A WLAN may use 802.11 admission control to ________, and admission control requirements are configured separately for each ________.

78. In a large enterprise (5000+ wireless users), by what would NOT be a recommended method by which IP addresses and VLANs are assigned to different clients associated to the same AP?

79. In a multiple channel architecture (MCA) network supporting 802.1X authentication, what aspect of WLAN design affects client roaming efficiency and effectiveness?

80. An associated STA detects a new BSS with the same SSID as the STA's current BSS. The new BSS uses a different IP subnet than the current BSS.

If the STA is configured to use 802.1X/EAP preauthentication, what is likely to occur?

81. 1Q trunk connection. The WLAN controller's native VLAN is VLAN 6 and its IP address is 10.0.14.2 /24. Lightweight APs supporting centralized forwarding are connected to the network on VLANs 7, 8, and 9, and they each build a Layer 3 tunnel back to the WLAN controller's IP address.

The dynamically assigned IP addresses received by each AP from a DHCP server will be ________________.

82. What is the purpose of DHCP Option 43, and how is it used with WLANs?

83. You deployed an AP and installed its antenna, and you now need to set the AP transmit power. Given a desired EIRP of 21 dBm, and an antenna gain of 5.85 dBd connected through 25 feet of cable with a loss specification of 4 dB/100 feet.

Assuming that there is no significant loss from the connectors, what should be the transmit power level for this AP?

84. Of the following antenna connector types, which one is the smallest?

85. You are creating an outdoor bridge link that spans more than 1000 yards.

Which one of the following antenna types is more likely to be included in

the design?