CWNP CWDP-304 Online Practice Questions and Exam Preparation

CWNP CWDP-304 Online Questions & Answers

• Question 201:

  A bandpass filter has a maximum in-band loss of 1.5 dB, ripple of 0.4 dB, and a return loss of 15 dB. What is the minimum in-band loss? Response:

  A. 1.1 dB
  B. 1.5 dB
  C. 13.5 dB
  D. 1.9 dB
  A. 1.1 dB

• Question 202:

  After designing and deploying a WLAN infrastructure, you realized the CCI is causing poor performance in the 2.4 GHz band. Primarily, you've designed the WLAN for 5 GHz and 2.4 GHz as a best effort. You found out that the implementers didn't follow your guidelines when configuring the WLAN infrastructure. What can you do to minimize as much as possible the CCI impact in the 2.4 GHz band?

  A. Add more APs to the infrastructure
  B. Increase the transmit power on all APs
  C. Turn-off 2.4 GHz radios on some APs
  D. Use all channels available in the 2.4 GHz band
  C. Turn-off 2.4 GHz radios on some APs

• Question 203:

  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?

  Response:

  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. Performance and battery life will be inconsistent between WMM-PS and non-WMM-PS client devices when used with applications that support WMM-PS.
  C. 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 PSPoll frames.
  D. WMM-PS enabled APs will allow both WMM-PS and non-WMM-PS stations to use the triggerand- delivery mechanism, but WMM-PS stations will g
  B. Performance and battery life will be inconsistent between WMM-PS and non-WMM-PS client devices when used with applications that support WMM-PS.

• Question 204:

  A designer has created a WLAN design that has been implemented in an organization. The network exists in a four-story building Because each floor has an Identical floor plan, the designer designed only one floor and had the installers duplicate the design on each floor. Now. in validation, it is not performing well

  What best explains the problem caused by this process?

  A. The result was that APs were above and below each other on the same channel, resulting in excessive CCI The APs should have been deployed so that they were not directly above and below each other and so that they used varying channels between floors
  B. The result was that clients could only connect to APs on their floor and, in a multi-floor deployment, you want clients to connect to APs on other floors in case they roam between floors.
  C. The result was that AC) was increased because the APs were deployed above and below each other on the same channels.
  D. The result was that the frequency utilization was too low for the clients to capture RF waves on which to transmit their signals.
  A. The result was that APs were above and below each other on the same channel, resulting in excessive CCI The APs should have been deployed so that they were not directly above and below each other and so that they used varying channels between floors

• Question 205:

  You are conducting a physical site survey where heavy machinery is repaired. What is a common item required specifically for this type of survey?

  A. Personal Protective Equipment (PPE)
  B. Low gain antennas
  C. Low power APs
  D. Indoor APs
  A. Personal Protective Equipment (PPE)

• Question 206:

  You are site surveying a network for VoWiFi. You have positioned an AP for a manual survey and are moving away from the AP with a phone in Survey Mode in your hand and you are reading the RSSI value of the signal received from the AP. You have previously determined that the noise floor was approximately -94 dBm on this floor of the building. The phones documentation does not specify a recommended RSSI or SNR value for best performance.

  Based on the information provided and the type of device (VoWiFi phone) you are deploying, what minimum RSSI should you plan for in all areas you are monitoring and where VoWiFi service is desired?

  A. - 75 dBm
  B. - 72 dBm
  C. - 67 dBm
  D. - 62 dBm
  C. - 67 dBm

• Question 207:

  When preparing a floor plan graphic for use in predictive and manual site surveying, what calibration method will lead to the most accurate and reliable RF data?

  A. Use the known size of a small object, such as a ceiling tile, and use a single instance of this object (e.g.a single ceiling tile) to scale the floor plan.
  B. Measure the width of an actual office doorway with a tape measure and use this value to calibrate against a doorway graphic.
  C. Use the longest available measurement (like a straight exterior wall) to calibrate the graphic's scale.
  D. Calibrate the ceiling height of the floor plan first, then the survey software should be able to auto- calibrate the X and Y planes of the graphic.
  C. Use the longest available measurement (like a straight exterior wall) to calibrate the graphic's scale.

• Question 208:

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

• Question 209:

  You are on site, planning a network at a freight shipping company on a busy harbor. Since the preliminary WLAN design specifies support for the 5 GHz spectrum, you would like to test for radar pulses to determine if DFS channels should be

  supported at this facility. As a part of your spectral survey with a laptop-based analyzer, you include DFS testing to identify the presence of radar. This is done by manually observing Real-time FFT,

  Duty Cycle, and Active Devices charts of the spectrum analyzer software.

  What potential drawback is present with this DFS test method?

  A. Many WLAN products that support DFS channels report several false positives. Ideally, the actual WLAN equipment used in the deployment should be used to test for DFS.
  B. Some sources of 5 GHz radar, such as military ships, are mobile in nature. A longer, automated test setup should be used to identify the presence or absence of radar.
  C. Manual identification of radar pulses using spectrum analysis charts can be very difficult due to radar's low amplitude at the Wi-Fi receiver.
  D. Modern spectrum analyzer adapters do not provide the necessary bandwidth resolution required to detect and measure radar signatures.
  C. Manual identification of radar pulses using spectrum analysis charts can be very difficult due to radar's low amplitude at the Wi-Fi receiver.

• Question 210:

  What commonly used item can help lo prevent back pain during lengthy site surveys?

  A. Relaxed fitting pants
  B. Safety j 83963
  C. Survey tray
  D. Forklift reclination attachment
  C. Survey tray