CWNP PW0-100 Online Practice Questions and Exam Preparation

CWNP PW0-100 Online Questions & Answers

• Question 41:

  Given: ABC Hospital is planning a Wi-Fi infrastructure upgrade where the 802.11b/g APs would be replaced with new dual-radio HT (802.11n) APs. ABC wants to minimize the time and cost associated with performing a new site survey, so

  they will be mounting all of the new APs in the same locations and with the same cable drops as the existing APs.

  What is one performance drawback with this deployment method?

  A. Multipath will increase, causing excessive layer-2 retransmissions. The retransmissions will cause latency for VoWiFi handsets.
  B. Increased receiver sensitivity on the HT APs will cause them to continually change channels to avoid co-channel interference.
  C. If the existing UTP cabling is not Category 6 or better, the total Ethernet backhaul for each AP will be limited to 100 Mbps.
  D. In locations with line-of-sight to client devices and little multipath, the benefits of MIMO may be less significant than in other areas.
  D. In locations with line-of-sight to client devices and little multipath, the benefits of MIMO may be less significant than in other areas.

• Question 42:

  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 43:

  Given: ABC Company has hired you to perform an initial site survey of their facility. During an interview, the network manager informs you that the new wireless network must use 5 GHz bands and OFDM, and VoWiFi handsets will be used extensively over the wireless network.

  What items do you need to include in the RF site survey report? (Choose 2)

  A. A heat map demonstrating signal quality in areas where VoWiFi is supported.
  B. Codec types and sampling rates for each VoWiFi phone
  C. Security parameters and configuration steps for VoWiFi handsets.
  D. Test results from an active survey with a VoWiFi handset
  E. Results of DFS compliance tests for each AP
  A. A heat map demonstrating signal quality in areas where VoWiFi is supported.
  D. Test results from an active survey with a VoWiFi handset

• Question 44:

  What term correctly completes the following sentence?

  In an IEEE 802.11 frame, the IP packet is considered by the MAC layer to be a(n) _________.

  A. MAC Service Data Unit (MSDU)
  B. MAC Protocol Data Unit (MPDU)
  C. Bridge Protocol Data Unit (BPDU)
  D. PLCP Service Data Unit (PSDU)
  E. PLCP Protocol Data Unit (PPDU)
  A. MAC Service Data Unit (MSDU)

• Question 45:

  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 46:

  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 47:

  When planning an access point deployment that utilizes Power over Ethernet (PoE) switches at the network edge, what design decision could adversely affect the operation of 802.3af APs?

  A. All ports on the Ethernet switch will be supporting Class 3 PoE powered devices.
  B. Some APs are connected to a PoE switch and are also receiving power from an AC outlet.
  C. The Ethernet switch's uplink ports are not connected to an 802.3af-compliant core or distribution Ethernet switch.
  D. A gigabit Ethernet switch port supporting an 802.11a/g AP auto-negotiates to 100 Mbps.
  E. The installation team is not informed that PoE support will reduce the recommended maximum UTP cabling length from 100m to 50m.
  A. All ports on the Ethernet switch will be supporting Class 3 PoE powered devices.

• Question 48:

  As XYZ Company's wireless specialist, you have been asked to troubleshoot some unexpected frame patterns in a wireless protocol capture. Your peers explain that the network's beacon frames are inconsistent. That is, the BSSID is the same for all beacons, but the source address varies between three different addresses.

  What network configuration would cause this beacon frame behavior?

  A. A single AP supports multiple BSSs with different SSIDs
  B. A virtual cell single channel network has been implemented
  C. The beacons are from an IBSS instead of a BSS
  D. Three APs still share the same default configuration.
  C. The beacons are from an IBSS instead of a BSS

• Question 49:

  Given:

  As a consultant, you have been hired by ABC Company to implement an outdoor WLAN connection between two buildings that are 2 kilometers (1.24 miles) from each other, with no obstructions in between.

  Your first required objective is to create a point-to-point link between the two buildings within the local regulatory body's 800 mW EIRP maximum.

  Your second required objective is to provide an industry-standard security solution capable of supporting mutual authentication.

  As an optional objective, you must minimize the amount of interference from, and to, nearby WLAN networks.

  You install an OFDM wireless bridge at each building, configuring one in root mode and the other in non- root mode. You set each radio for 100 mW (20 dBm) and attach 9 dBi omni-directional antennas to both. You configure the network for

  WPA2-Enterprise with PEAPv0/EAP-MSCHAPv2 authentication.

  Which statement is true about the solution you chose to deploy?

  A. Your solution meets both required objectives and the optional objective.
  B. Your solution meets the first required objective and the optional objective, but not the second objective.
  C. Your solution meets the second required objective and the optional objective, but not the first required objective.
  D. Your solution meets neither required objective but meets the optional objective.
  E. Your solution meets both required objectives, but does not meet the optional objective.
  F. Your solution does not meet either required objective, or the optional objective.
  E. Your solution meets both required objectives, but does not meet the optional objective.

• Question 50:

  In an 802.11b/g system, what channels are considered non-overlapping? (Choose two)

  A. Channels 5 and 10
  B. Channels 1 and 5
  C. Channels 3 and 7
  D. Channels 2 and 8
  E. Channels 8 and 11
  F. Channels 10 and 13
  A. Channels 5 and 10
  D. Channels 2 and 8