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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 |
| Recommend appropriate RF adjustments | - RF channel assignment - RF channel bandwidth - RF coverage (transmit power, radio count, antennas) - RF interference issues |
NEW QUESTION # 151
Prior to meeting with the customer for the first time, you should do which of the following?
Response:
- A. Decide which vendor they will benefit most from.
- B. Find out what vendor their competitors use.
- C. Research the customer as much as possible. Try to understand what their business is, who their customers are, and any other information you can find regarding product lines and recent press announcements.
- D. Plan an initial design to present to them.
Answer: C
NEW QUESTION # 152
What basic RF math formula should be used as a baseline to convert an RF value in units of dBm into a value of mW?
*Note: "dBm" in the formulas represents the known dBm value
- A. mW mW
- B. 0 dBm = 1 mW
- C. mW C.
Answer: B
NEW QUESTION # 153
Why does a frame transmitted at 1 Mbps have a greater usable range than the same frame transmitted at 54 Mbps?
- A. Free space path loss causes greater signal dispersion for higher rate transmissions.
- B. To improve reliability, 802.11 STAs increase transmit power as the signaling rate decreases.
- C. Receiver sensitivity requirements are lower for frames transmitted with less complex modulation and coding.
- D. Lower data rate RF transmissions travel at higher speeds and are less likely to experience collisions.
Answer: C
NEW QUESTION # 154
What happens when you double the channel width (for example, use channel bonding) in a BSS?
- A. Higher noise and higher SNR at the receiver
- B. Higher noise and lower SNR al the receiver
- C. Lower noise and lower SNR at the receiver
- D. Lower noise and higher SNR at the receiver
Answer: B
NEW QUESTION # 155
What roaming technology uses stored keys at the APs for roam back if a client STA returns after having roamed away?
Response:
- A. Preauthentication
- B. OKC
- C. SCA roaming
- D. PMK caching
Answer: D
NEW QUESTION # 156
If you choose to recommend dynamic channel assignment for the APs in your WLAN design what action should you also recommend'?
- A. Replace all antennas with panel antennas instead of omnidirectional antennas
- B. Configure the settings used by the dynamic channel assignment algorithm optimally for your design
- C. Ensure that the output power of an APs is set to the minimum available in the system interface
- D. Ensure that the output power of all APs is set to the maximum allowed in the regulatory domain
Answer: B
NEW QUESTION # 157
If the amplifier in Question 4 has a noise figure of 10 dB but a gain of 0 dB, what is the total noise figure of the cable, amplifier, and filter in series?
Response:
- A. 70 dB
- B. 10 dB
- C. 75 dB
- D. 16 dB
Answer: C
NEW QUESTION # 158
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. GPS and a map
- C. Camera and marking tools
- D. RF spectrum analyzer and packet capturing software
Answer: C
NEW QUESTION # 159
Which of the following items could be considered constraints when performing a network design?(Choose all that apply.)
- A. Politics
- B. Timeline
- C. Budget
- D. Personnel
Answer: A,B,C,D
NEW QUESTION # 160
When performing an active site survey in an existing WLAN infrastructure, in addition to gathering throughput data, what other important function will you typically be testing at the same time?
- A. ACL configuration
- B. Application filtering
- C. Roaming
- D. Internet bandwidth
Answer: C
NEW QUESTION # 161
What is the most appropriate antenna which will require the least Intentional Radiator power for a point-to- point bridge link spanning 1200 meters?
- A. 11 dBi omnidirectional
- B. 2.2 dBi omnidirectional
- C. 11 dBi disn
- D. 5 dBi patch
Answer: C
NEW QUESTION # 162
In an RSN requiring low-latency reassociations and no fast secure roaming protocols, what security solutions are ideal for protecting VoWiFi communication?(Choose all that apply.) Response:
- A. WEP
- B. WPA-Personal
- C. WPA2-Personal
- D. WPA2-Enterprise
- E. 802.1X/EAP
Answer: C,D
Explanation:
WPA2-Personal and WPA2-Enterprise are ideal security solutions for protecting VoWiFi communication in an RSN requiring low-latency reassociations and no fast secure roaming protocols. WPA2-Personal uses a pre-shared key (PSK) to authenticate and encrypt the communication between the VoWiFi device and the access point. WPA2-Enterprise uses 802.1X/EAP to authenticate the VoWiFi device and the RADIUS server, and then derives a unique encryption key for each session. Both WPA2-Personal and WPA2-Enterprise use AES-CCMP as the encryption algorithm, which provides strong security and low overhead. WPA2-Personal and WPA2-Enterprise also support key caching andpre-authentication mechanisms, which reduce the latency and disruption during reassociations. These features are essential for maintaining the quality of service and user experience for VoWiFi communication.
WPA-Personal, WEP, and 802.1X/EAP are not ideal security solutions for protecting VoWiFi communication in an RSN requiring low-latency reassociations and no fast secure roaming protocols. WPA-Personal uses TKIP as the encryption algorithm, which is less secure and more computationally intensive than AES-CCMP.
WPA-Personal also does not support key caching and pre-authentication mechanisms, which increase the latency and disruption during reassociations. WEP is an outdated and insecure encryption algorithm that can be easily cracked by attackers. WEP also does not support any authentication or key management mechanisms, which expose the VoWiFi communication to various attacks. 802.1X/EAP is an authentication framework, not a security solution. 802.1X/EAP alone does not provide any encryption or key management for the VoWiFi communication. 802.1X/EAP must be combined with a robust encryption algorithm, such as AES-CCMP, to provide adequate security for VoWiFi communication. References: CWNP, CWDP Certified Wireless Design Professional Official Study Guide, Security Considerations for Voice over Wi-Fi (VoWiFi) Systems, Top 13 VoIP Security Issues and How to Combat Them
NEW QUESTION # 163
What commonly causes a client-to-AP link imbalance?
- A. The client's antenna gain is lower than the AP's antenna gain
- B. The client's transmit power is significantly lower than the AP's transmit power
- C. The AP's transmit power is significantly lower than the client's transmit power
- D. The AP's antenna gain is lower than the client's antenna gain
Answer: B
NEW QUESTION # 164
What are some common problems with short (12 or fewer characters) ASCII passphrases in WPA/WPA2-Personal networks?
Response:
- A. They lead to weak group keys in a BSS.
- B. They are more susceptible to dictionary attacks than longer passphrases.
- C. Very few AP and client vendors support entry of an ASCII-based passphrase.
- D. They only produce a 64-bit PMK instead of a 256-bit PMK.
Answer: B
NEW QUESTION # 165
You performed a site survey with two USB Wi-Fi adapters using a special driver written for the site survey software. After deployment, you realized that the client devices used by your customer are getting lower RSSI values than that shown during your site survey. What is the most likely reason for this result?
- A. USB Wi-Fi adapters have a greater sensitivity than internal Wi-Fi adapters.
- B. Regular Wi-Fi cards installed in client devices do not support the same protocols as survey adapters.
- C. USB Wi-Fi adapters designed for site surveys may have better sensitivity than regular Wi-Fi cards installed in client devices.
- D. The transmit power on the APs is higher than needed.
Answer: C
NEW QUESTION # 166
Which of the following items could be considered constraints when performing a network design?(Choose all that apply.) Response:
- A. Politics
- B. Timeline
- C. Budget
- D. Personnel
Answer: A,B,C,D
NEW QUESTION # 167
What is a radome?
- A. The unit used to measure the signal reflected backward by the end of a cable.
- B. A piece of metal positioned behind APs mounted on outdoor poles, designed to limit the butterfly effect.
- C. A weatherproof piece of plastic covering an antenna or antenna system.
- D. A type of semi-circular ceiling found in atriums and that is a heavy cause of RF reflection.
Answer: C
NEW QUESTION # 168
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?
- A. Each SSID is mapped to a static VLAN assignment
- B. Radio signal metrics (RSSI, SNR, etc.) of WLAN clients are triangulated for location-based VLAN assignment during association
- C. Upstream AAA servers dynamically assign VLANs to each user or group profile
- D. Multiple VLAN pools are designated for an SSID and user IP addresses are selected in a round-robin fashion from the associated pools
Answer: B
NEW QUESTION # 169
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CWNP CWDP-304 Exam Certification Details:
| Duration | 90 minutes |
| Recommended Training | CWDP self-paced training kit, Live Wi-Fi Design Training Class |
| Exam Name | Wireless Design Professional |
| Number of Questions | 60 |
| Passing Score | 70% |
| Exam Registration | PEARSON VUE |
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