CWNP CWNP Certifications CWDP-304 Questions & Answers

• Question 141:

  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?

  A. Yagi

  B. Omni

  C. Patch

  D. Panel

  Correct Answer: A

• Question 142:

  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. 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.

  B. 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.

  C. Performance and battery life will be inconsistent between WMM-PS and non-WMM-PS client devices when used with applications that support WMM-PS.

  D. WMM-PS enabled APs will allow both WMM-PS and non-WMM-PS stations to use the trigger-and-delivery mechanism, but WMM-PS stationswil

  Correct Answer: C

• Question 143:

  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. Perform an AP-on-a-Stick survey using AP locations based upon the predictive design to confirm each AP's placement.

  B. Deploy all of the APs as they're shown in the predictive design and perform a passive site survey.

  C. Deploy all of the APs as they're shown in the predictive design and perform an active site survey.

  D. Use a client device positioned where the APs will be installed and measure the signal from the client device.

  Correct Answer: A

  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. References: 1: CWDP Certified Wireless Design Professional Official Study Guide: Exam PW0-304, Chapter 5, page 163.

• Question 144:

  What might limit the ability to locate 802.11 clients using a WLAN infrastructure without an 802.11 tag?(Choose all that apply.)

  A. Lack of 802.11k support

  B. When its radio is disabled

  C. When it is off

  D. RF channel selection

  Correct Answer: BC

• Question 145:

  You are working on a VoWLAN design with your customer's wired networking team. How many distinct priority levels do you expect for the voice applications?

  A. 1 priority level, but 2 queues (one for uplink traffic, one for downlink traffic)

  B. 1 priority level per client and AP pair, so the total number depends on the expected number of clients

  C. 1 priority level for voice RTP, 1 priority level for voice control and RTCP

  D. 1 priority level for VoWLAN client traffic, 1 priority level for wired VoIP client traffic

  Correct Answer: C

• Question 146:

  When designing a static channel plan for an office using voice devices near an airport, which range of channels should be avoided to ensure optimal performance when implemented?

  A. 36-40

  B. 44-48

  C. 116-124

  D. 1-11

  Correct Answer: C

• Question 147:

  What should always be done before connecting an AP to the production network?

  Response:

  A. Baseline configuration that prevents the introduction of security issues to the network on initial connection.

  B. Disabling SSID broadcasting.

  C. Reduction of output power.

  D. Increase in output power.

  Correct Answer: A

• Question 148:

  Excessive uplink RTP frame retransmissions can result in ____________.

  Response: A. Deauthentication of the transmitter by the receiver

  B. Lowering of the data transmission rate by the transmitting station

  C. Head-of-Line blocking at the receiver

  D. MOS scores in excess of 5

  Correct Answer: B

• Question 149:

  Your customer requires fast secure roaming. Which two types of roaming are specified in 802.11-2016 FT roaming that will help meet this goal?

  A. Over-the-Air and Over-the-DS

  B. Over-the-Air and Over-the-Wire

  C. FT and OKC

  D. FT and TKIP

  Correct Answer: A

• Question 150:

  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?

  A. 10 mW

  B. 14 mW

  C. 20 mW

  D. 25 mW

  Correct Answer: D