CWNP PW0-105 Online Practice Questions and Exam Preparation

CWNP PW0-105 Online Questions & Answers

• Question 111:

  What phrase defines Equivalent Isotropically Radiated Power (EIRP)?

  A. Radio transmitter output power minus attached cable and connector loss
  B. Radio transmitter output power only
  C. Power supplied to the transmit antenna input plus antenna gain
  D. Reflected power due to an impedance mismatch in the signal path
  E. Power supplied from the transmission line to the antenna's input
  C. Power supplied to the transmit antenna input plus antenna gain

• Question 112:

  What 802.11n technologies require MIMO support on both the transmitter and receiver? (Choose 2)

  A. Spatial multiplexing
  B. Transmit beamforming
  C. Maximal ratio combining
  D. Space-time block coding
  E. Cyclic shift diversity
  F. Short guard intervals
  A. Spatial multiplexing
  D. Space-time block coding

• Question 113:

  What statements describe industry practices for communication protocols between WLAN controllers and controller-based APs? (Choose two)

  A. All vendors use the same protocol so that APs will interoperate with WLAN controllers from other vendors.
  B. Some vendors use proprietary protocols, and some vendors use protocols based on public standards like RFCs.
  C. For most vendors, the controller-based APs maintain data and control tunnels with at least two controllers for immediate failover and redundancy.
  D. All vendors support at least one L2 or L3 broadcast protocol for controller discovery by controller- based APs.
  E. All vendors recommend using L2 (instead of L3) controller discovery and tunneling protocols in large enterprises.
  B. Some vendors use proprietary protocols, and some vendors use protocols based on public standards like RFCs.
  D. All vendors support at least one L2 or L3 broadcast protocol for controller discovery by controller- based APs.

• Question 114:

  Given:

  A WLAN transmitter that emits a 200 mW signal is connected to a cable with 3 dB loss.

  If the cable is connected to an antenna with 10 dBi gain, what is the EIRP at the antenna element?

  A. 10 dBm
  B. 13 dBm
  C. 20 dBm
  D. 26 dBm
  E. 30 dBm
  E. 30 dBm

• Question 115:

  What item is essential for performing a manual RF site survey for a warehouse facility?

  A. A facility map with an explanation of applications used in each area
  B. I-Beam mounting kits for hanging temporary access points
  C. High-gain omni antennas for APs mounted high on warehouse ceilings
  D. Predictive site survey software that supports directional antennas
  E. NEMA enclosures that protect APs used for the survey
  A. A facility map with an explanation of applications used in each area

• Question 116:

  What advantages does using predictive site survey modeling software offer over performing a manual site survey? (Choose two)

  A. Predictive modeling software can predict the ideal access point location 100% of the time, whereas the results from manual surveying are less reliable.
  B. Predictive modeling software makes it simple to assess multiple different AP locations and then adjust and display the AP's expected coverage pattern in almost real-time.
  C. Predictive modeling software provides more reliable data than manual surveys when fine-tuning and validating access point placement after the installation.
  D. The exact impact of interference sources from external networks can be more accurately measured when using predictive modeling software than with manual surveys.
  E. It takes less time to create an initial site survey for a large facility when using predictive modeling software than when performing a manual survey.
  B. Predictive modeling software makes it simple to assess multiple different AP locations and then adjust and display the AP's expected coverage pattern in almost real-time.
  E. It takes less time to create an initial site survey for a large facility when using predictive modeling software than when performing a manual survey.

• Question 117:

  What distinguishes an independent basic service set (IBSS) from an infrastructure basic service set (BSS)?

  A. An IBSS does not have a distribution system (DS), but a BSS does.
  B. An IBSS does not require beacon frames, but a BSS does.
  C. An IBSS does not support 802.11 authentication or association, but a BSS does.
  D. An IBSS can only operate on a single channel, but a BSS can operate on multiple channels.
  A. An IBSS does not have a distribution system (DS), but a BSS does.

• Question 118:

  Given:

  You have been sent as a consultant to a customer site that is experiencing problems with some 2.4 GHz clients on their 802.11a/g network. After collecting information from the company about the problem, your initial troubleshooting step is

  to find a client device experiencing performance problems and observe its 802.11 frame exchanges in a protocol analyzer. The retransmission rate for that client is 65% instead of the company's baseline, which is 9%.

  Based on this information, what troubleshooting step should follow to isolate the problem?

  A. Check the frame decodes in the protocol analyzer and look for an excessive number of deauthentication frames.
  B. Evaluate the client's operating frequency band with a spectrum analyzer, looking for a high noise floor or interference sources.
  C. Utilize a laptop-based site survey and planning tool to create a predictive model of the optimal AP placement in the customer's facility.
  D. With a protocol analyzer, identify the client's roaming threshold settings and reassociation behavior.
  E. Install Wi-Fi endpoint security and reporting software on the client device to monitor and log the retransmission behavior.
  B. Evaluate the client's operating frequency band with a spectrum analyzer, looking for a high noise floor or interference sources.

• Question 119:

  What word describes the bending of an RF signal as it passes from one medium to another medium of a different density?

  A. Diffraction
  B. Reflection
  C. Refraction
  D. Diffusion
  E. Scattering
  C. Refraction

• Question 120:

  What factors will have the most significant affect on the amount of wireless bandwidth available to each station within a BSS? (Choose two)

  A. The number of client stations associated to the BSS
  B. The power management settings in the access point's beacons
  C. The presence of co-located (10m away) access points on non-overlapping channels
  D. The data rates at which nearby client stations are transmitting and receiving data
  E. The layer 3 protocol used by each station to transmit data over the wireless link
  A. The number of client stations associated to the BSS
  D. The data rates at which nearby client stations are transmitting and receiving data