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Pass Guaranteed 2025 Latest CWNP CWDP-305: Certified Wireless Design Professional Reliable Exam Materials

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CWNP CWDP-305 Exam Syllabus Topics:

Topic
Details

Topic 1

Define Specifications for the WLAN: This section of the exam measures the skills of a Wireless Network Planner and focuses on gathering business and technical requirements needed for designing wireless LANs. It includes understanding user needs, regulatory and safety constraints, and environmental factors. Candidates are expected to identify critical elements such as coverage, capacity, security, and device compatibility, and to analyse existing infrastructure and documentation to ensure a successful design strategy.

Topic 2

Deploy the WLAN: This section of the exam measures the skills of a WLAN Implementation Specialist and involves overseeing the deployment phase of wireless networks. It focuses on understanding deployment procedures for various WLAN architectures, configuring supporting infrastructure, and verifying proper installation. The section also addresses physical installation checks, documentation handover, and quality assurance practices during ongoing installations.

Topic 3

Design the WLAN: This section of the exam measures the skills of a WLAN Design Engineer and covers the process of selecting configurations, architecture types, and wireless components to meet business and technical requirements. It includes using design software, selecting access points and antennas, and applying methodologies such as predictive or measured design. Candidates must demonstrate the ability to produce effective documentation and configure features like QoS, roaming security, and network services for different types of client devices and applications.

Topic 4

Validate and Optimize the WLAN: This section of the exam measures the skills of a WLAN Optimization Specialist and assesses the ability to test, validate, and fine-tune wireless networks post-deployment. Key tasks include RF validation surveys, performance testing, troubleshooting connectivity and security issues, and applying appropriate physical or RF adjustments. It also involves client testing and final project handover, including documentation, knowledge transfer, and meetings to ensure long-term WLAN success.

CWNP Certified Wireless Design Professional Sample Questions (Q21-Q26):

NEW QUESTION # 21
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?

A. PoE Layer 2 switch
B. Wireless bridge
C. NTP server
D. Router

Answer: D

NEW QUESTION # 22
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?

A. 65 Mbps
B. 108 Mbps
C. 54 Mbps
D. 144 Mbps

Answer: D

NEW QUESTION # 23
As a device starts to shift to lower PHY rates, what factors usually influence a device's decision to shift to lower PHY rates? (Choose all that apply.)

A. Signal degradation
B. Interference
C. Retransmissions
D. Packet loss

Answer: A,B,C

Explanation:
In wireless networks, devices dynamically adjust their physical layer (PHY) data rates based on the quality of the radio frequency (RF) environment. Several factors influence a device's decision to lower its PHY rate:
Signal degradation: As the signal strength weakens due to distance or obstacles, the device may lower its data rate to maintain a reliable connection.
Interference: The presence of other RF signals can cause interference, leading the device to reduce its data rate to mitigate potential errors.
Retransmissions: An increase in retransmissions indicates that frames are not being successfully received, prompting the device to lower its data rate to improve reliability.
While packet loss is a consequence of these factors, it is not a direct cause for adjusting the PHY rate.
Reference: CWDP-305 Official Study and Reference Guide, Chapter on ProtocolandSpectrum Analysis

NEW QUESTION # 24
Given: You are evaluating the theoretical and real-world RF gain benefits of transmit and receive features introduced by 802.11 with MIMO. This exercise allows you to quantify the features value in a real-world environment.
What is the maximum theoretical signal gain of chip-based TxBF and MRC (as features) when compared to the same AP using only a single antenna for transmit and receive (effectively simulating a 1x1 chip)?

A. 2 Rx or Tx chains = 1 dBi gain 3 Rx or Tx chains = 2 dBi gain 4 Rx or Tx chains = 3 dBi gain
B. 2 Rx or Tx chains = 3 dBi gain 3 Rx or Tx chains = 6 dBi gain 4 Rx or Tx chains = 9 dBi gain
C. 2 Rx or Tx chains = approx 4-6.5 dBi gain 3 Rx or Tx chains = approx 7-10 dBi gain
D. 2 Rx or Tx chains = 3 dBi gain 3 Rx or Tx chains = approx 5 dBi gain 4 Rx or Tx chains = 6 dBi gain

Answer: C

Explanation:
The maximum theoretical signal gain of chip-based TxBF and MRC depends on the number of antennas and the channel conditions. TxBF (transmit beamforming) is a technique that focuses the transmitted signal in the direction of the intended receiver, resulting in higher signal strength and less interference. MRC (maximum ratio combining) is a technique that combines the signals received by multiple antennas in an optimal way, resulting in higher signal-to-noise ratio and better performance. The theoretical gain of TxBF and MRC can be calculated as GTxBF=10log10(N) and GMRC=10log10(N) where N is the number of antennas. Therefore, the total gain of TxBF and MRC is Gtotal=GTxBF+GMRC=20log10(N) However, this is the ideal case and assumes perfect channel conditions and alignment. In reality, the gain is lower due to factors such as channel fading, antenna spacing, and feedback delay. According to the CWDP study guide1, the typical gain of TxBF and MRC is about 4-6.5 dBi for 2 antennas, 7-10 dBi for 3 antennas, and 10-13 dBi for 4 antennas. Therefore, the answer is D. Reference: 1: CWDP Certified Wireless Design Professional Official Study Guide: Exam PW0-250, Chapter 8, page 267.

NEW QUESTION # 25
A company wants to connect its headquarters to its remote office that is 13 kilometers away using a wireless bridge. What requirement must not be forgotten by their Wireless Engineer when considering the Fresnel Zone?

A. FSPL
B. Receive sensitivity
C. Antenna gain
D. Earth bulge

Answer: D

NEW QUESTION # 26
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