CWNP CWNP Wireless LAN Certifications PW0-105 Questions & Answers

• Question 81:

  ABC Company has thousands of Wi-Fi users accessing their network on a daily basis. Their WLAN consists of 700 access points, 6 WLAN controllers, and a wireless network management system. What network functions are performed by the enterprise-class WNMS? (Choose three)

  A. RF pre-deployment planning and post-deployment reporting of access point locations on a floor plan

  B. Performance and security monitoring of WLAN controllers with alarms and notifications for administrative staff

  C. Radio management, fast roaming, key caching, and other centralized control plane operations

  D. Centralized bridging of guest data traffic and application of firewall and QoS policies to data

  E. Management of WLAN controller configuration and provisioning of firmware updates

  F. Generating, encrypting, and decrypting 802.11 frames and collecting RF radio data.

  Correct Answer: ABE

• Question 82:

  Given:

  An 802.11 WLAN transmitter that emits a 50 mW signal is connected to a cable with 3 dB loss. The cable

  is connected to an antenna with 16 dBi gain.

  What is the EIRP power output?

  A. 17 dBm

  B. 20 dBm

  C. 23 dBm

  D. 27 dBm

  E. 30 dBm

  Correct Answer: E

• Question 83:

  What phrase correctly completes the following sentence?

  When using WMM Power Save operation, a wireless client device ______________.

  A. Alternates between awake and dozing, depending on its need to transmit and receive information

  B. Enters a low-power radio state until it receives a WMM PS-Poll frame from the AP

  C. Experiences higher throughput and lower latency than when operating in Active mode

  D. Powers down a subset of MIMO radio chains and transmits information at a slower data rate

  E. Buffers frames destined to the low-power AP until the AP wakes its radio and begins beaconing again

  Correct Answer: A

• Question 84:

  ABC Company has just purchased a 6 dBi patch antenna. After performing some tests with the 6 dBi antenna, they have concluded that more antenna gain is needed to cover their outdoor courtyard. When choosing an antenna with higher gain, what other antenna characteristic will also change?

  A. Fresnel Zone size

  B. Maximum input power

  C. Beamwidth

  D. Impedance

  E. VSWR Ratio

  Correct Answer: C

• Question 85:

  In an 802.11n 2.4 GHz BSS, what prevents each station from using the full network bandwidth (e.g. 130 Mbps) when multiple clients are actively exchanging data with the AP? (Choose two)

  A. Radio receiver hardware cannot process data as quickly as it can be transmitted.

  B. Half of the bandwidth is allocated to uplink traffic and half to downlink traffic.

  C. The DCF and EDCA coordination functions require backoff algorithms

  D. WLAN devices cannot detect collisions and must receive positive frame acknowledgment.

  E. WLANs rely on the CSMA/CD protocol and must wait a collision detection period after each frame is transmitted.

  Correct Answer: CD

• Question 86:

  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

  Correct Answer: B

• Question 87:

  What are two channel modes specified by the 802.11n (High Throughput) PHY? (Choose two)

  A. 20 MHz

  B. 20/40 MHz

  C. 5/10 MHz

  D. 22 MHz

  E. 80 MHz

  F. 160 MHz

  Correct Answer: AB

• Question 88:

  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

  Correct Answer: AD

• Question 89:

  What specifications should be evaluated for an antenna before it is implemented in a WLAN system? (Choose three)

  A. Spectral efficiency

  B. TPC support

  C. Impedance in Ohms

  D. Elevation Beamwidth

  E. Return Loss Rating

  F. Operating Frequencies

  Correct Answer: CDF

• Question 90:

  Given: The network administrator at XYZ Company recently attended a training class on wireless security and realized that he should update the corporate security policy to address WLAN technology. The network administrator is listing the items that should be addressed in the security policy update, and has asked for your input.

  What WLAN topics should be addressed by a company security policy? (Choose 4)

  A. Theft prevention and data security of WLAN infrastructure devices

  B. Wireless intrusion monitoring and response procedures

  C. WLAN performance analysis baseline documentation

  D. Password requirements for users and infrastructure equipment

  E. Training of the IT staff on WLAN operational security

  F. User density planning and AP client association thresholds

  Correct Answer: ABDE