testking cisco 642-731 pdf
Q: 21 When using a lightning arrestor, connect which type of ground wire to a good earth ground?
A. #6 solid copper
B. #12 solid copper
C. #20 solid copper
D. #22 solid copper
testking 642-731
Answer: A
Q: 22 The Cisco Aironet 1140 Series Access Point draws 12.95 W at the power source. However, when using a long Ethernet cable, the device can draw up to how much additional wattage?
A. 0.25 W
B. 0.45 W
C. 1 W
D. 1.25 W
E. 2.45 W F. 5.65 W
Answer: E
Q: 23 Which three items should the site survey documentation include? (Choose three.)
A. photographs
B. floor plans
C. wired network layout
D. blueprints
Answer: A, B, D
Q: 24 When planning for voice deployments with the Cisco Unified Wireless IP Phone
7921G handset in a multifloor building with a WLAN that operates at an 11 Mb/s data rate, how many decibels referenced to 1 milliwatt of same-channel separation are recommended between floors?
A. 13 dBm
B. 19 dBm
C. 25 dBm
D. 31 dBm
Answer: B
Q: 25 Given the correct input parameters, the Cisco WCS Planning Tool can calculate a recommended access point count for which three uses?
A. data/coverage
B. voice
C. location
D. mesh
E. public
F. WPAN
Answer: A, B, C
Q: 26 When planning for VoWLAN capacity during a site survey, how many simultaneous calls can be estimated per 5 GHz channel?
A. 7
B. 14
C. 20
D. 30
Answer: C
Q: 27 In an outdoor bridge link, what is calculated by using this formula: transmitter power + antenna gain – insertion OR cable loss?
A. Fresnel zone
B. SNR
C. SLR
D. PoE
E. EIRP
Answer: E
Q: 28 When surveying for VoWLAN, which power level should you base the access point coverage design on?
A. 40mW maximum transmit power
B. average power level of the VoWLAN clients
C. 100mW transmit power
D. lowest power level of the VoWLAN clients
Answer: D
Q: 29 What should be done if Cisco Spectrum Expert Wi-Fi reports a channel utilization of 40 percent on channel 36, from a source outside of the site?
A. Report the problem to the FCC.
B. Report the problem to the FAA.
C. Remove channel 36 from the DCA channel list.
D. Configure channel 36 to bond to channel 40 for a 40Mhz 802.11n channel.
Answer: C
Q: 30 What does a broad-spectrum interferer lower?
A. SNR
B. noise floor
C. level of interference
D. Received Signal Strength Indicator
Answer: A
Q: 31 Which three colors are used in the Cisco WCS v5.2 Voice Readiness Tool? (Choose three.)
A. green
B. blue
C. yellow
D. red
E. purple
F. white
Answer: A, C, D
Q: 32 When conducting a wireless voice site survey, which two sizing considerations exist for the coverage cell? (Choose two.)
A. rogue access point detection in the coverage area
B. multipath issues in the coverage area
C. number of VoWLAN users in the coverage cell
D. call capacity requirements of the coverage area
Answer: C, D
Q: 33 How is attenuation measured?
A. Fresnel units
B. decibels
C. EIRP
D. milliamperes
E. ohms
Answer: B
Q: 34 A design requires 100 access points with high channel bandwidth and disabled lower data rates. How are the data rates set on the Cisco WLC and Cisco WCS?
A. per SSID
B. per access point
C. globally
D. per WLAN and radio
Answer: C
Q: 35 Which format can NOT be imported into Cisco WCS Planning Tool?
A. TIFF
B. DXF
C. PNG
D. DWG
Answer: A
Q: 36 Which three items does the Cisco WCS Planning Tool Generate Proposal Report provide? (Choose three.)
A. access point position, in feet, from a corner of the floor plan
B. SNR coverage map for 802.11a/n
C. data rate map for 802.11a/n
D. percent of coverage by signal
Answer: A, C, D
Q: 37 How should the transmit power on an access point and client each be set during a site survey?
A. at 30mW
B. matched to the antenna gain
C. differing by at least 20 dBi
D. matched to each other
Answer: D
Q: 38 What is a site survey best practice for location-based services?
A. 20 percent cell overlap
B. four access points detecting a client at -76 dBm or better
C. 10 percent cell overlap
D. three access points detecting a client at -75 dBm or better
Answer: D
Q: 39 Which statement about active and passive surveys is incorrect?
A. Active mode does not require the client to be specifically configured.
B. Passive mode can survey more than one access point at a time.
C. Active mode yields signal-quality information such as packet retries and lost packets.
D. Active mode requires more time to survey but yields more informative results than passive mode does.
Answer: A
Q: 40 Which statement regarding the site-survey process is correct?
A. In a multifloor building, the access point layout from the survey of one floor can be directly applied to the remaining floors.
B. Access points can be installed in the same place on every floor, without worrying about co-channel interference.
C. You can survey with a Cisco AIR-ANT5959 in a plenum environment.
D. Identify all hazardous and restricted areas that might require extra or special survey and installation work.
Answer: D
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