CWNP PW0-100 Online Practice Questions and Exam Preparation

CWNP PW0-100 Online Questions & Answers

• Question 71:

  What statement about the IEEE 802.11e QoS facility is true?

  A. 802.11 QoS is achieved by giving high priority queues a statistical advantage at winning contention.
  B. Four 802.1p user priorities are mapped to eight 802.11 transmit queues.
  C. When the Voice queue has frames awaiting transmission, no data will be transmitted from the Best Effort queue.
  D. To improve efficiency, Block Acknowledgments are required for Voice and Video WMM queues.
  E. 802.11 control frames are assigned to the 802.11 EF priority queue.
  A. 802.11 QoS is achieved by giving high priority queues a statistical advantage at winning contention.

• Question 72:

  What statement about 802.3af Power over Ethernet (802.3, Clause 33) is true?

  A. If a dual-radio access point requires 12W to operate, a PoE power source supplies 15.4W to the powered interface.
  B. 802.3af-compliant endpoint and midspan PSE devices support 10/100 as well as Gigabit (1000Base- T) data rates.
  C. Class 1 powered devices may use a maximum of 29W of power.
  D. 802.3af-compliant Ethernet switches must be able to simultaneously support class 3 powered devices on every powered interface.
  E. There are two classes of 802.3af PSEs: Type A supports up to 7W and Type B supports up to 15W of supplied power.
  A. If a dual-radio access point requires 12W to operate, a PoE power source supplies 15.4W to the powered interface.

• Question 73:

  What term correctly completes the following sentence?

  802.11a/b/g used a mandatory 800ns guard interval. 802.11n introduces an optional short 400ns guard interval. Guard intervals (GI) are necessary in OFDM to reduce the likelihood of interference between two consecutive ____________.

  A. Frames
  B. Packets
  C. Segments
  D. Bits
  E. Bytes
  F. Symbols
  F. Symbols

• Question 74:

  When a client station sends a broadcast probe request frame with a wildcard SSID, how do APs respond?

  A. After waiting a SIFS, all APs reply at the same time with a probe response.
  B. After waiting a SIFS, a designated AP sends an ACK, and then replies with a probe response.
  C. Each AP sends its own ACK, and then follows the ACK with a probe response.
  D. For each probe request frame, only one AP may reply with a probe response.
  E. Each AP responds in turn after preparing a probe response and winning contention.
  E. Each AP responds in turn after preparing a probe response and winning contention.

• Question 75:

  In an enterprise WLAN, what condition will prevent a dual-band HT client device from performing a fast and seamless transition (i.e. latency-sensitive applications are not disrupted) between two access points that are managed by the same WLAN controller?

  A. The current AP is using channel 1 and the new AP is using channel 40.
  B. The SSID of the current AP does not match the SSID of the new AP.
  C. The current AP supports only ERP and the new AP is HT capable.
  D. The access points are hiding the SSID in Beacons and Probe Response frames.
  B. The SSID of the current AP does not match the SSID of the new AP.

• Question 76:

  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 77:

  What statements about the beamwidth of an RF antenna are true? (Choose two)

  A. The lower the gain of an antenna, the more narrow one or both beamwidths become.
  B. The beamwidth patterns on an antenna polar chart indicate the point at which the RF signal stops propagating.
  C. Horizontal and vertical beamwidth are calculated at the points in which the main lobe decreases power by 3 dB.
  D. Horizontal beamwidth is displayed (in degrees) on the antenna's Azimuth Chart.
  E. Antenna beamwidth is measured in units of decibels relative to an isotropic radiator (dBi).
  C. Horizontal and vertical beamwidth are calculated at the points in which the main lobe decreases power by 3 dB.
  D. Horizontal beamwidth is displayed (in degrees) on the antenna's Azimuth Chart.

• Question 78:

  What causes of hidden nodes within a BSS would likely lead to an increase in collisions and retries? (Choose two)

  A. Data frames too large for the physical environment
  B. Client stations broadcasting with too much power
  C. Access points broadcasting with too little power
  D. Client stations too close in proximity to each other
  E. Obstacles between client stations causing attenuation
  F. Large 802.11 cells with physically distributed stations
  E. Obstacles between client stations causing attenuation
  F. Large 802.11 cells with physically distributed stations

• Question 79:

  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 80:

  Given:

  The center frequency of channel 1 in the 2.4 GHz ISM band is 2.412 GHz (2412 MHz).

  What is the center frequency of channel 2?

  A. 2.413 GHz
  B. 2.417 GHz
  C. 2.422 GHz
  D. 2.432 GHz
  E. 2.437 GHz
  B. 2.417 GHz