CWNP PW0-105 Online Practice Questions and Exam Preparation

CWNP PW0-105 Online Questions & Answers

• Question 51:

  When performing a site survey for a Multiple Channel Architecture (MCA) system in a multi-tenant building with six floors, what aspect should you, as the site surveyor, keep in mind?

  A. All doors and windows in the building should be open during the site survey to assess maximum coverage range.
  B. The omni-directional antennas of the access points should be oriented parallel to the floor to maximize the coverage pattern across as many floors as possible.
  C. The channel reuse pattern should be three dimensional with the RF cell extending coverage of each access point to other floors.
  D. The Fresnel Zone is completely blocked between floors so each floor is considered a separate site survey.
  C. The channel reuse pattern should be three dimensional with the RF cell extending coverage of each access point to other floors.

• Question 52:

  Given: As you prepare for a site survey in a hospital, you have learned about several wireless devices that support connection-oriented, real-time applications. These applications are sensitive to service interruptions and require excellent signal quality, low latency, and low loss. For that reason, it is important to identify sources of RF interference as well as building characteristics that would cause RF blockage or dead spots.

  What systems or environmental characteristics are most likely to cause interference or RF blockage and disrupt service for these applications? (Choose two)

  A. Microwave ovens
  B. Long hallways
  C. Elevator shafts
  D. RFID chokepoints
  E. Drywall offices
  A. Microwave ovens
  C. Elevator shafts

• Question 53:

  The IEEE 802.11a/n physical layer technologies utilize the 5 GHz frequency band. What is true of the two lower bands (UNII-1 and UNII-2) in this frequency spectrum? (Choose two)

  A. The frequency range of these bands is 5000 MHz - 5200 MHz
  B. Each of these two bands contain five 20 MHz channels.
  C. Regulatory domains worldwide require DFS and TPC in these bands.
  D. These bands have a total combined bandwidth of 200 MHz.
  E. 20 MHz in each of these bands is reserved as a guard band.
  D. These bands have a total combined bandwidth of 200 MHz.
  E. 20 MHz in each of these bands is reserved as a guard band.

• Question 54:

  What statements accurately describe the RF cables and connectors that are used in an 802.11 WLAN system? (Choose three)

  A. RF cables have upper and lower frequency range specifications.
  B. 75 and 125 ohms are the typical impedances of 802.11 WLAN connectors.
  C. Two RF connectors of the same type (e.g. SMA), manufactured by different companies, may vary in specifications.
  D. Every RF connector causes insertion loss.
  E. Large diameter RF cables cause greater loss than small diameter cables.
  F. Coaxial RF cables can be used to carry Power-over-Ethernet (PoE) to an outdoor bridge mounted on a mast.
  A. RF cables have upper and lower frequency range specifications.
  C. Two RF connectors of the same type (e.g. SMA), manufactured by different companies, may vary in specifications.
  D. Every RF connector causes insertion loss.

• Question 55:

  Given: To ease user complexity, your company has implemented a single SSID for all employees. However, the network administrator needs a way to control the network resources that can be accessed by each employee based on their department.

  What WLAN feature would allow the network administrator to accomplish this task?

  A. SNMP
  B. VRRP
  C. RBAC
  D. IPSec
  E. WIPS
  F. WPA2
  C. RBAC

• Question 56:

  The OSI model is a 7-layer model for understanding the functions of a communication system. What OSI sublayers are specifically addressed by the IEEE 802.11-2007 standard? (Choose 2)

  A. MSDU
  B. PPDU
  C. PLCP
  D. MAC
  E. IP
  F. 802.1X
  C. PLCP
  D. MAC

• Question 57:

  Using the exhibit as a reference,

  

  what is the maximum number of spatial streams that could be used for a downlink HT-OFDM transmission from AP-1 to STA-3?

  A. One spatial stream, because the BSS must maintain backwards compatibility with STA-2, which supports only 802.11g (ERP) without MIMO or multiple spatial streams.
  B. Two spatial streams, because the number of spatial streams for an HT-OFDM transmission is limited to the capabilities of the least capable HT station in the BSS.
  C. Two spatial streams, because the third transmit chain in the HT AP must be used simultaneously for protection mechanisms with the 802.11g (ERP) station.
  D. Three spatial streams, because HT-OFDM transmissions will be preceded with protection mechanisms using a basic data rate for STA-2 and possibly STA-1.
  D. Three spatial streams, because HT-OFDM transmissions will be preceded with protection mechanisms using a basic data rate for STA-2 and possibly STA-1.

• Question 58:

  If an 802.11 RF transmission reaches a receiving antenna simultaneously by direct and indirect (reflected) paths, what effect will the reflected signal have on the signal that took the direct line-of- sight path?

  A. The direct signal will only be received if the reflected signal is more than 180 degrees out of phase.
  B. The direct signal cannot be received if the indirect signal is less than 90 degrees out-of-phase.
  C. The signals will be distorted if the indirect signal arrives simultaneously at the receiver, but 90 degrees out-of-phase.
  D. If the signals are in-phase, they will combine together, cancel one another out, and create a null.
  C. The signals will be distorted if the indirect signal arrives simultaneously at the receiver, but 90 degrees out-of-phase.

• Question 59:

  Given: As a station moves away from the access point to which it is associated, it changes its data rate from 54 Mbps to 48 Mbps and then to 36 Mbps. What IEEE 802.11 term is used to describe this functionality?

  A. Dynamic Rate Switching
  B. Multirate Control
  C. Modulation and Coding Selection
  D. Rate Set Selectivity
  E. Adaptive Rate Management
  A. Dynamic Rate Switching

• Question 60:

  Given: You are being interviewed by ABC Company for employment as a wireless site survey engineer. The interviewing manager asks you what items should be included in a manual RF site survey report.

  What answer would be accurate? (Choose two)

  A. Itemized list of equipment, licenses, and support contracts required for the facility
  B. RF heat map illustrating coverage and signal quality for each frequency band
  C. Documentation noting physical security hazards in the RF coverage area
  D. Documentation noting where each access point will be placed and how it will be mounted
  E. Documentation noting how each WLAN user group will authenticate to the network
  B. RF heat map illustrating coverage and signal quality for each frequency band
  D. Documentation noting where each access point will be placed and how it will be mounted