CWNP CWDP-302 Online Practice Questions and Exam Preparation

CWNP CWDP-302 Online Questions & Answers

• Question 21:

  In this question, you will compare the mobility processes of a network that supports WPA2- Personal and WPA2-Enterprise. Assume the use of a 15-character ASCII passphrase for WPA2-Personal and EAP-TTLS/MSCHAPv2 with WPA2Enterprise. Also, assume that proprietary roaming protocols are not supported.

  When a device transitions from one BSS to another within the same ESS, what step must be performed in the WPA2-Enterprise transition that are not performed in the WPA2- Personal transition?

  A. Open System Authentication
  B. 802.11 Reassociation
  C. 802.1X authentication
  D. 4-Way Handshake
  C. 802.1X authentication

• Question 22:

  Excessive uplink RTP frame retransmissions can result in ____________.

  A. Deauthentication of the transmitter by the receiver
  B. Lowering of the data transmission rate by the transmitting station
  C. MOS scores in excess of 5
  D. Head-of-Line blocking at the receiver
  B. Lowering of the data transmission rate by the transmitting station

• Question 23:

  Given: In a site survey deliverable report, you are expected to explain the spectrum measurements taken at the customer's site. What portion of a spectrum analyzer view can be used to determine if a given channel is too active for use as the active channel for a new AP?

  A. Device list
  B. Frame decode
  C. Real time FFT
  D. Duty cycle
  D. Duty cycle

• Question 24:

  You have determined the best mounting locations for APs in a given installation. The facilities manager has asked you to change the locations for several APs due to aesthetic concerns. You suggest mounting the APs in the ideal locations and painting them so they go unnoticed in the environment.

  What is a valid recommendation or consideration when painting APs?

  A. Always use paints with metallic dye in them to prevent potential RF propagation impact.
  B. Painting APs will significantly reduce the output power.
  C. Painting APs may void the product manufacturer's warranty.
  D. Most AP models for indoor environments come in a variety of form factors and colors. Painting is never recommended.
  C. Painting APs may void the product manufacturer's warranty.

• Question 25:

  What is a radome?

  A. A type of semi-circular ceiling found in atriums and that is a heavy cause of RF reflection.
  B. A weatherproof piece of plastic covering an antenna or antenna system.
  C. The unit used to measure the signal reflected backward by the end of a cable.
  D. A piece of metal positioned behind APs mounted on outdoor poles, designed to limit the butterfly effect.
  B. A weatherproof piece of plastic covering an antenna or antenna system.

• Question 26:

  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. 54 Mbps
  B. 65 Mbps
  C. 108 Mbps
  D. 144 Mbps
  D. 144 Mbps

• Question 27:

  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 deploymentshould 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 28:

  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 stations will get priority.
  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.

• Question 29:

  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. Receiver sensitivity requirements are lower for frames transmitted with less complex modulation and coding.
  C. To improve reliability, 802.11 STAs increase transmit power as the signaling rate decreases.
  D. Lower data rate RF transmissions travel at higher speeds and are less likely to experience collisions.
  B. Receiver sensitivity requirements are lower for frames transmitted with less complex modulation and coding.

• Question 30:

  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.