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CWNP CWDP-304 Exam Certification Details:
| Passing Score | 70% |
| Duration | 90 minutes |
| Exam Code | CWDP-304 CWDP |
| Exam Name | Wireless Design Professional |
| Exam Price | $275 USD |
NEW QUESTION # 90
During a customer walkthrough you notice an area of the CAD drawing where it is not accurate. What next step should you take?
Response:
- A. Redraw the portions of the map that have changed.
- B. Request the survey team to do their best to walk where necessary and use the references on the map.
- C. Request a new version.
- D. Do not survey that area.
Answer: C
NEW QUESTION # 91
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?
Response:
- A. Deploy all of the APs as they're shown in the predictive design and perform a passive site survey.
- B. Use a client device positioned where the APs will be installed and measure the signal from the client device.
- C. Perform an AP-on-a-Stick survey using AP locations based upon the predictive design to confirm each AP's placement.
- D. Deploy all of the APs as they're shown in the predictive design and perform an active site survey.
Answer: B
NEW QUESTION # 92
What metric implements the simplest algorithm and lowest accuracy in networks requiring locations?
- A. Time Difference of Arrival (TDoA)
- B. Time of Arrival (ToA)
- C. Angle of Arrival (AoA)
- D. Received Signal Strength Indicator (RSSI)
Answer: D
NEW QUESTION # 93
What strategy can be used to ensure efficient cell overlap for VoIP site surveys?
Response:
- A. Measure the percentage of cell overlap using the cell overlap feature in the site survey software.
- B. Install higher gain antennas in the APs.
- C. Ensure at least two APs can be seen with appropriate signal strengths from each location.
- D. Increase the output power of the radio in all APs.
Answer: A
NEW QUESTION # 94
An amplifier has a 1 dB compression point of 32 dBm and a gain of 20 dB. Which is the highest average input power shown here that would be safe to operate a 24 Mbps 802.11g signal so that spectral regrowth is not a problem?
Response:
- A. 10 dBm
- B. 5 dBm
- C. 0 dBm
- D. 5 dBm
Answer: C
NEW QUESTION # 95
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?
- A. The WLAN infrastructure will set the dozing times of the WMM-PS certified client devices based upon their WMM access category, while the non-WMM-PS client devices will continue to use PS-Poll frames.
- B. WMM-PS enabled APs will allow both WMM-PS and non-WMM-PS stations to use the trigger-and-delivery mechanism, but WMM-PS stations wil
- C. All WMM-PS certified client devices will be prevented from utilizing WMM-PS features until all stations in use on the wireless medium are WMM-PS certified.
- D. Performance and battery life will be inconsistent between WMM-PS and non-WMM-PS client devices when used with applications that support WMM-PS.
Answer: D
NEW QUESTION # 96
What advantages are provided by per-user PSKs when compared with ESS-wide PSKs?(Choose all that apply.) Response:
- A. Per-user PSKs are more secure than ESS-wide PSKs because they support mutual authentication.
- B. Per-user PSKs allow easier user-based access control with WPA/WPA2-Personal security.
- C. Per-user PSKs are standardized and certified by the Wi-Fi Alliance.
- D. Per-user PSKs are easier to manage if a PSK is compromised or an employee leaves a company.
Answer: D
NEW QUESTION # 97
A signal passes through a 10-meter cable, an amplifier, and then a filter. The amplifier has an output that is eight times higher in power than its input. Each meter of cable reduces the signal level by a factor of 4. The filter has a loss of 5 dB.
What is the total loss/gain of the three elements in series?
Response:
- A. 65 dB loss
- B. 56 dB loss
- C. 16 dB gain
- D. 37 dB loss
Answer: D
NEW QUESTION # 98
What should always be done before connecting an AP to the production network?
Response:
- A. Increase in output power.
- B. Reduction of output power.
- C. Disabling SSID broadcasting.
- D. Baseline configuration that prevents the introduction of security issues to the network on initial connection.
Answer: D
NEW QUESTION # 99
What is the best method of gathering attenuation measurements from any building materials or objects?
- A. Look on the Internet for attenuation values for each one of the materials that might attenuate the Wi-Fi signal using the material provider's websites.
- B. After measuring the RSSI in free space 1 meter (3 feet) apart, put an AP 0.32 meters (1 feet) away from the wall or object on the other side.
Take measurements and compare the difference. - C. Use the pre-built attenuation values in the predictive design tool.
- D. After measuring the RSSI in free space 5 meters (16.5 feet) apart, put an AP 4 meters (13 feet) away from the wall or object on one side and your measuring device 0.67 meters (2 feet) away from the wall or object on the other side. Take measurement and compare the difference.
Answer: D
NEW QUESTION # 100
Which operational plane would be responsible for performing automated RF management?
Response:
- A. Management
- B. Data
- C. Integration
- D. Distribution
- E. Control
Answer: E
NEW QUESTION # 101
An engineering firm just upgraded their WLAN form nine 802.11n APS to nine 802.11ac APs. After this upgrade, they did not see any improvement in throughput. What is the most likely cause of this result?
Response:
- A. APs are transmitting at a low transmit power
- B. The APs are still using the 5 GHz lower band
- C. APs are mounted on the wall
- D. The clients were not upgraded
Answer: D
NEW QUESTION # 102
What architecture suffers the biggest limitation for sharing control information across APs?
Response:
- A. Cooperative autonomous
- B. Independent autonomous
- C. Controller
- D. Centralized
- E. Distributed
Answer: B
NEW QUESTION # 103
What metric implements the simplest algorithm and lowest accuracy in networks requiring locations?
Response:
- A. Time Difference of Arrival (TDoA)
- B. Time of Arrival (ToA)
- C. Angle of Arrival (AoA)
- D. Received Signal Strength Indicator (RSSI)
Answer: D
NEW QUESTION # 104
When using a predictive design tool, you have selected APs with an antenna gain 3 dBi and set the transmit power of the predicted APs to 25 mW. What should be EIRP of the APs in the design?
Response:
- A. 6.25 mW
- B. 11 dBm
- C. 125 mW
- D. 17 dBm
Answer: D
NEW QUESTION # 105
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?
- A. IPv6
- B. Multicasting
- C. Secure TCP
- D. IPSec
Answer: B
NEW QUESTION # 106
What is the DSCP Per Hop Behavior equivalent classification of the 802.11 AC_VO priority level?
- A. EF
- B. VO
- C. AF31
- D. CS3
Answer: A
NEW QUESTION # 107
What commonly causes a client-to-AP link imbalance?
- A. The client's transmit power is significantly lower than the AP's transmit power
- B. The AP's transmit power is significantly lower than the client's transmit power
- C. The AP's antenna gain is lower than the client's antenna gain
- D. The client's antenna gain is lower than the AP's antenna gain
Answer: A
NEW QUESTION # 108
What advantage provided by 802.11n and 802.11ac is not usable in 1X1:1 low-end client devices?
- A. Maximal Ratio Combining
- B. Channel bonding
- C. MCS data rates
- D. Mandatory data rates
Answer: A
NEW QUESTION # 109
What functions may be performed by a WIPS?(Choose all that apply.)
Response:
- A. Performance monitoring and response
- B. Client access to the distribution system
- C. Distributed protocol analysis
- D. Automated threat mitigation
- E. Data forensics and analysis
Answer: A,C,D,E
NEW QUESTION # 110
Modulation can be defined as:
Response:
- A. The process of encoding data symbols using a carrier frequency
- B. The process of representing data using RF coding
- C. The process of modifying a carrier signal to represent data
- D. The process of incorporating a chipping code to build resilience
Answer: C
NEW QUESTION # 111
What are the three biggest WLAN enterprise verticals?(Choose all that apply.) Response:
- A. Education
- B. Retail
- C. Healthcare
- D. Office environments
- E. Warehouses
Answer: A,B,C
NEW QUESTION # 112
In a convention center, you have received complaints about the WLAN infrastructure. At this moment, the are only two APs in one auditorium.
After analyzing the situation, you determined that there are more client devices that the infrastructure was designed for. There are only two APs to support more than 300 devices using the Wi-Fi at the same time.
What should you do to make the Wi-Fi work as expected?
Response:
- A. Turn up the output power on the APs so that they can handle more clients
- B. Upgrade the Ethernet connections to MultiGig
- C. Redesign the entire WLAN
- D. Quickly add more APs
Answer: C
NEW QUESTION # 113
What are the deliverables to your customer after successfully implementing a WLAN infrastructure?
- A. Digital or physical assets, guides, floorplans and configuration documents
- B. Nothing is required. The implemented WLAN was deliverable
- C. Project Charter
- D. Facility blueprints
Answer: A
NEW QUESTION # 114
In addition to a copy of your design, which tools should you use to ensure the installation team deploys APs where you have them designed to be located?
- A. Ladder and a pen
- B. Camera and marking tools
- C. RF spectrum analyzer and packet capturing software
- D. GPS and a map
Answer: B
NEW QUESTION # 115
......
CWNP CWDP-304 Exam Topics:
| Section | Objectives |
|---|---|
Define Specifications for the WLAN - 25% | |
| Collect business requirements and constraints | - Business use cases and justification - User requirements - Regulatory compliance - Industry compliance - Budget - Aesthetics - Architectural constraints - Mounting restrictions - Access restrictions - Time constraints - Building codes and safety codes |
| Collect and define technical requirements | - Vendor selection - Location services such as RTLS - Latency requirements - Signal strength requirements - Capacity requirements - Security requirements
- Applications and their specific requirements |
| Collect project documentation | - Validated floor plans - Network infrastructure
- Cabling infrastructure
- Power availability and PoE capabilities |
| Define requirement areas including essential metrics for each requirement | - Client device types and capabilities - Applications and their requirements - User and device density - SSIDs - Security settings - Understand common vertical markets |
| Gather information on environmental factors | - Building materials - Attenuation values - Ceiling heights - Site annotations (photos, notes, plans) - Wireless environment scan
|
Design the WLAN - 40% | |
| Define WLAN architectures and select the appropriate architecture for a design | - Controller-based (physical and virtual) architectures - Distributed (cloud-based and local WNMS) - Standalone/Autonomous APs - Dynamic vs. static channel assignment - Dynamic radio management - Software defined radios - RF profiles - Select and/or recommend the appropriate equipment for the design and selected architecture (APs, antennas, controllers, managed services) |
| Produce a design to meet requirements | - Select and use the appropriate design tools
- Select and use the appropriate design methodologies
- Understand and use the common features of wireless design software
- Select and use common vendor features and make configuration recommendations
- Design for different client and application types
- Ensure end-to-end QoS is properly implemented
- Define and recommend security solutions
- Design for secure roaming
|
| Create, distributed, and communicate design documentation | - Bill of Materials (BoM) - Design reports - Physical installation guide |
Deploy the WLAN - 10% | |
| Ensure proper understanding and implementation of the design | - Implementation meeting
- Distribute required documentation |
| Recommend or perform essential deployment tasks | - Understand and perform installation procedures for different WLAN architectures (cloud-based, controller-based, WNMS, autonomous) - Infrastructure configuration supporting the WLAN (DHCP, DNS, NTP, switches, and routers) - Channel assignment, automatic radio management, and transmit power configuration - Installation procedures for cloud-based APs, controller-based APs, WNMS APs, and autonomous APs |
| Perform an installation audit for quality assurance | - Verify proper AP and antenna location and orientation - Verify aesthetic requirements are met - Verify physical security of the installation |
Validate and Optimize the WLAN - 25% | |
| Confirm the WLAN system is operational | - AP Status - Verify PoE provisioning of power requirements are met |
| Perform an RF validation survey | - Ensure coverage requirements - Evaluate impacts of contention and interference |
| Perform client performance testing | - Connectivity testing - Application testing - Roaming testing - Capacity testing - Security testing |
| Recommend appropriate physical adjustments | - AP - Antenna and connectors |
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