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CWNP CWDP-305 Exam Syllabus Topics:
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NEW QUESTION # 197
What is the minimum PoE budget needed on a switch to support 6 (six) APs that can only be powered using IEEE 802.3at if no other details are provided?
- A. 320 W
- B. 180 W
- C. 240 W
- D. 60 W
Answer: B
Explanation:
Comprehensive and Detailed Explanation:
IEEE 802.3at, also known as PoE+, provides up to 25.5 watts of power per port. To support 6 access points requiring PoE+ power:
25.5 W/AP × 6 APs = 153 W
Considering some overhead for power loss and future scalability, a minimum PoE budget of 180 W is recommended to ensure reliable operation.
NEW QUESTION # 198
Which one of the following options would you consider a well-designed WLAN infrastructure when measuring RSSI, Noise Floor, and SNR in a required area?
- A. Low RSSI, High Noise Floor, Low SNR
- B. High RSSI, High Noise Floor, Low SNR
- C. High RSSI, Low Noise Floor, High SNR
- D. Low RSSI, Low Noise Floor, Low SNR
Answer: C
Explanation:
RSSI (Received Signal Strength Indicator):Higher RSSI indicates stronger signal reception.
Noise Floor:Lower noise floor improves clarity of communication.
SNR (Signal-to-Noise Ratio):A high SNR is required for good throughput and reliability.
A well-designed WLAN will have:
High RSSI (strong signal)
Low Noise Floor (less interference)
High SNR (clear distinction between signal and noise)
From CWDP-305:
"A strong, clean signal (high RSSI, low noise) results in higher SNR, which directly correlates with better performance and fewer retransmissions."
- Reference: CWDP-305 Official Study and Reference Guide, Chapter on Post-Design ValidationandTroubleshooting
NEW QUESTION # 199
What are some significant drawbacks that are present with WPA/WPA2-Enterprise that are not present with WPA/WPA2-Personal? (Choose all that apply.)
- A. WPA/WPA2-Enterprise does not provide a way to perform per-user authorization and access control.
- B. WPA/WPA2-Enterprise often requires additional backend infrastructure components that are not required with WPA/WPA2-Personal.
- C. WPA/WPA2-Enterprise often requires more administrative overhead for configuration than WPA
/WPA2-Personal. - D. WPA/WPA2-Enterprise always requires X.509 certificates for server authentication.
- E. WPA/WPA2-Enterprise does not support the use of usernames/passwords for client authentication.
Answer: B,C
Explanation:
WPA/WPA2-Enterprise provides enhanced security features suitable for enterprise environments, such as per- user authentication and dynamic encryption keys. However, these benefits come with certain drawbacks not present in WPA/WPA2-Personal:
Additional Infrastructure Requirements:WPA/WPA2-Enterprise typically requires a RADIUS server to handle authentication, which adds complexity and cost to the network infrastructure.
Increased Administrative Overhead:Configuring and maintaining WPA/WPA2-Enterprise involves managing user credentials, certificates, and RADIUS server settings, which demands more administrative effort compared to the simpler pre-shared key setup of WPA/WPA2-Personal.
It's important to note that WPA/WPA2-Enterprise does support the use of usernames and passwords for client authentication and provides mechanisms for per-user authorization and access control. While X.509 certificates are commonly used for server authentication in WPA/WPA2-Enterprise, they are not strictly required in all configurations.
Reference: CWDP-305 Official Study and Reference Guide, Chapter on Infrastructure Design
NEW QUESTION # 200
During lunch time in the break room of a company, Wi-Fi connectivity on the 2.4 GHz band is intermittent.
Every other time of the day, it works fine.
What's the likely cause of this issue?
- A. Toasters and ovens are heating up the air, raising the noise floor with the Wi-Fi on the 2.4 Ghz band
- B. The AP in the cafeteria keeps rebooting due to lack of PoE budget on the switch
- C. Microwaves in the cafeteria are interfering with the Wi-Fi on the 2.4 GHz band
- D. Employees are using their cell data instead of using the Wi-Fi
Answer: C
NEW QUESTION # 201
Why should band steering algorithms allow stations to connect to the 2.4 GHz band after ignoring a certain number of Probe Requests?
- A. Because the 802.11 standard requires it
- B. Because the AP will experience a buffer overflow if they do not eventually respond with a Probe Response
- C. Because the FCC requires it
- D. Because some clients are persistent clients that will not move to the 5 GHz band
Answer: D
NEW QUESTION # 202
In high-density environments, such as stadiums and convention centers, what extra factor has to be taken into account that can attenuate Wi-Fi signals when these environments are having an event?
- A. People
- B. Thick walls
- C. Fire doors
- D. I-Beams
Answer: A
Explanation:
In high-density environments like stadiums and convention centers, the presence of large crowds significantly impacts Wi-Fi signal propagation.Human bodies, composed mostly of water, absorb and attenuate radio frequency (RF) signals, especially in the 2.4 GHz and 5 GHz bands commonly used by Wi-Fi.This absorption leads to reduced signal strength and potential connectivity issues during events when the venue is filled with people.
Designing a WLAN for such environments requires careful consideration of crowd density and its impact on RF signals.Strategies may include increasing the number of access points (APs), using directional antennas to focus coverage, and conducting site surveys during events to assess real-world performance.
Reference: CWDP-305 Official Study and Reference Guide, Chapter on Designing for Specific Applications
NEW QUESTION # 203
Main Topic:Advanced Site Surveys
Question:
Left to its simplest form, what method does a location algorithm use to determine location within a WLAN coverage area?
- A. 802.11 clause 16
- B. FSPL
- C. RF fingerprinting
- D. Inverse cube law
Answer: C
Explanation:
Comprehensive and Detailed Explanation:
RF fingerprinting is a method used in WLANs to determine the location of a device by comparing the current signal characteristics (like signal strength and quality) to a pre-recorded database of signal profiles (fingerprints) taken at various locations. This technique allows for accurate indoor positioning without relying solely on signal strength calculations.
Option A:Inverse cube law is not typically used in WLAN location algorithms.
Option B:Free Space Path Loss (FSPL) calculations are more theoretical and less effective in complex indoor environments.
Option D:Clause 16 of the 802.11 standard pertains to mesh networking, not location algorithms.
Reference:CWDP-305 Study Guide, Chapter on WLAN Design - Location Services and Technologies.
NEW QUESTION # 204
During a validation site survey, you realize that the installers mounted some of the APs on the wait when the design called Tor a celling mount. They said that this was done because the cabling company did not have the right tools to run the cables above the ceiling. You know that this will cause a difference in how the Wi-Fi signal will radiate throughout the environment. What should you do in this case?
- A. Leave it as it is because it will not have a significant impact
- B. Turn up the power on the APs to accommodate for the difference
- C. Blame the cabling company it the Wi-Fi doesn't work since they didnot do their job correctly
- D. Advise the stakeholder that requirements will not be met and a new design process will be needed to meet the requirements
Answer: D
NEW QUESTION # 205
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?
- A. LEAP
- B. EAP-FAST
- C. EAP-TTLS
- D. EAP-TLS
Answer: C
NEW QUESTION # 206
Which document provided to your customer should include all devices and parts that are going to be used during the deployment of their WLAN infrastructure?
- A. Project plan
- B. SoW
- C. BoM
- D. Design report
Answer: C
NEW QUESTION # 207
Main Topic:Designing for Specific Applications
Question:
For what purpose is SSID hiding generally useful? (Choose all that apply.)
- A. Preventing guests from attempting to join the secured corporate network
- B. Preventing legitimate corporate users from finding the guest network
- C. Obscuring the network name from potential attackers
- D. Minimizing help desk calls from users and guests attempting to join the wrong network
Answer: A,B,D
Explanation:
Comprehensive and Detailed Explanation:
Hiding the Service Set Identifier (SSID) can serve specific purposes, such as:
Preventing guests from attempting to join the secured corporate network:By not broadcasting the corporate SSID, casual users are less likely to attempt connections, reducing unauthorized access attempts.
Minimizing help desk calls from users and guests attempting to join the wrong network:When only the guest network SSID is visible, it simplifies the connection process for visitors, leading to fewer support requests.
However, it's important to note that SSID hiding is not a robust security measure. Determined attackers can still detect hidden networks using various tools, as the SSID can be revealed in certain management frames like probe requests and association requests.
Reference:CWDP-305 Study Guide, Chapter on Designing for Specific Applications - SSID Management and Security Considerations.
NEW QUESTION # 208
Main Topic:Infrastructure Design
Question:
An enterprise customer is subject to the highest standards for network uptime. When designing their wireless network, you should consider which of the following? (Choose all that apply)
- A. The failover of the wired network only
- B. The failover of the wireless network only
- C. The physical aspects such as power and cabling
- D. The failover of the wireless and wired network
Answer: C,D
Explanation:
Comprehensive and Detailed Explanation:
For enterprises requiring high network uptime, it's crucial to design for redundancy and failover in both the wireless and wired components of the network. This includes:
Wireless and Wired Network Failover:Ensuring that both wireless access points and wired infrastructure have redundancy to prevent single points of failure.
Physical Aspects (Power and Cabling):Implementing redundant power supplies, uninterruptible power supplies (UPS), and proper cabling practices to maintain network availability during power outages or hardware failures.
Reference:CWDP-305 Study Guide, Chapter on Infrastructure Design - High Availability and Redundancy Planning.
NEW QUESTION # 209
For what types of systems should you request read-only access to in order to perform an analysis of the customer's existing infrastructure?(Choose all that apply.) Response:
- A. RADIUS
- B. Active Directory
- C. Clients
- D. Routers
- E. Switches
Answer: D,E
NEW QUESTION # 210
What are the best practices for better location accuracy when deploying Wi-Fi RTLS?
- A. Place APs on the perimeter of the required area and make sure that every client device is able to "hear" at least one AP
- B. Place APs in the center of the required area and make sure that every client device is able to hear at least three APs
- C. Place APs on the perimeter and throughout the required area and make sure that every client device is able to "hear" at least three APs
- D. Place APs in the center of the required area and make sure that every client device is able to hear at least two APs
Answer: C
Explanation:
Real-Time Location Systems (RTLS) require precise triangulation, which can only occur if a device is detected by at least three APs with strong RSSI values from various angles. The best accuracy is achieved by placing APs around the perimeter and within the area so devices are surrounded.
From CWDP-305:
"For accurate Wi-Fi location tracking, ensure that client devices can be detected by a minimum of three, preferably four, APs with good signal strength. APs should be placed around the perimeter and within the location zone for proper triangulation."
- Reference: CWDP-305 Official Study and Reference Guide, Chapter on Designing for Specific Applications
NEW QUESTION # 211
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?
- A. The AP is configured to use channel 36
- B. The customer laptop does not support OFDM
- C. Their laptops are SISO clients
- D. The AP is on channel 144
Answer: D
NEW QUESTION # 212
What statements are true regarding jitter and latency?(Choose all that apply.) Response:
- A. Jitter is a measurement of average latency based on a sample of >100 frames.
- B. Jitter is a measurement of latency variability from one frame to another.
- C. Jitter is a measurement of the variance of the number of frames received from an application for a specific time interval.
- D. Latency is a measurement of the time required to transmit two subsequent frames.
- E. Latency is a measurement of the time delay experienced in the delivery of a frame.
Answer: B,E
Explanation:
Jitter and latency are two important metrics for measuring the quality and performance of wireless networks, especially for real-time applications such as voice and video. Latency is the average time taken for a data packet to reach the destination, while network jitter is the irregularity in latency. When the latency is consistently high, it can mean a slow but stable connection. On the other hand, a high jitter means there may be sporadic disruptions or delays in the transmission, which can affect the quality of service and user experience. Jitter is caused by various factors, such as network congestion, interference, routing changes, hardware issues, or packet prioritization. Jitter can be measured by calculating the difference between the latency of two consecutive packets, or by using the standard deviation of the latency of a sample of packets. Jitter can be reduced by using Quality of Service (QoS) mechanisms, such as traffic shaping, queuing, or scheduling, which can prioritize the packets based on their importance and sensitivity to delay. Jitter can also be mitigated by using jitter buffers, which can store the incoming packets and smooth out the variations in latency before delivering them to the application. Reference: CWNP, CWDP Certified Wireless Design Professional Official Study Guide, Network Jitter - Common Causes and Best Solutions, Network Jitter vs Latency: What's the Difference and Why Does It Matter, Jitter vs Latency - What's The Difference and Why it Matters
NEW QUESTION # 213
While using a USB adapter attached to a USB hub and your laptop for protocol analysts you notice that the SNR is lower than expected. The USB adapter is an 802 11 ac 3x3 3 adapter and is connected to a USB 3 hub. What is likely causing the SNR variation?
- A. EMI from the battery in the device
- B. RF incidental energy generated by the cooling fans in the laptop
- C. USB 3 0 interference
- D. USB 20 interference
Answer: C
NEW QUESTION # 214
SSID hiding is not generally recommended because some frames require inclusion of the SSID. In what frames is the SSID always included?
Response:
- A. Probe request
- B. Beacon
- C. Association request
- D. Probe response
- E. Authentication response
Answer: C
NEW QUESTION # 215
After designing a WLAN infrastructure using predictive design software. What's the best way to validate the predictive design in the physical space before deployment, if time and budget allow for it?
- A. Use a client device positioned where the APs will be installed and measure the signal from the client device.
- B. Perform an AP-on-a-Stick survey using AP locations based upon the predictive design to confirm each AP's placement.
- C. Deploy all of the APs as they're shown in the predictive design and perform an active site survey.
- D. Deploy all of the APs as they're shown in the predictive design and perform a passive site survey.
Answer: B
Explanation:
An AP-on-a-Stick survey is a method of validating a predictive design by placing an AP at each proposed location and measuring the signal coverage and performance. This allows the designer to verify the accuracy of the predictive design and make any adjustments if needed. An AP-on-a-Stick survey is more cost-effective and time-efficient than deploying all the APs and performing a passive or active site survey, which would require installing the APs, cabling, power, and network infrastructure. Using a client device to measure the signal from the AP locations is not a reliable way of validating the design, as it does not account for the interference, noise, and multipath effects that may affect the actual AP performance. Reference: 1: CWDP Certified Wireless Design Professional Official Study Guide: Exam PW0-304, Chapter 5, page 163.
NEW QUESTION # 216
What term refers to the security practice of obfuscating actual data from unintended receivers as the data crosses the transmission medium?
Response:
- A. Integrity
- B. Authentication
- C. Nonrepudiation
- D. Confidentiality
- E. Accounting
Answer: D
NEW QUESTION # 217
An AP vendor being considered for a WLAN deployment suggests that their 2 4 GHz and 5 GHz dual-band APs use software defined radios What unique capability does this indicate in comparison to non-software defined radios?
- A. Software is used to configure the encryption settings
- B. The radios can have their SSlDs configured through software
- C. At least one radio can be configured for either 2 4 GHz or 5 GHz operations
- D. Software is used to configure the entire WLAN profile
Answer: C
NEW QUESTION # 218
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. 54 Mbps
- C. 144 Mbps
- D. 108 Mbps
Answer: C
NEW QUESTION # 219
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