What will cause wireless voice devices to perform poorly？（）A、average signal strength that is greater than -67 dBiB、cell overlap of 15 to 20 percentC、uneven wireless coverageD、absence of coverage holes
What will cause wireless voice devices to perform poorly？（）
- A、average signal strength that is greater than -67 dBi
- B、cell overlap of 15 to 20 percent
- C、uneven wireless coverage
- D、absence of coverage holes
相关考题：
A client wants to improve the wireless coverage on the third floor of their house. The wirelessrouter is located in the basement and there is no easy way to run a cable to the third floor.Which of the following devices should be installed to extend the wireless coverage to cover the entirethird floor without running cables?（）A.SwitchB.RouterC.RepeaterD.Bridge
What is the minimum recommended access point overlap for voice roaming？（）A、less than 10 percentB、10 to 15 percentC、15 to 20 percentD、25 to 30 percent
What amount of cell overlap ensures smooth roaming for wireless endpoints？（）A、5~10%B、10 ~15%C、15~20%D、20~25%
What is the recommended radius of a cell for a voice-ready wireless network?（）A、86dBmB、67dBmC、19dBmD、95dBm
What are two design considerations for a WLAN to support voice?（）A、Packet loss is less than one percent.B、Signal strength at cell edge is approximately -67 dBm.C、End-to-end delay is less than 200 ms.D、Cell overlap between APs is 50 percent.
By default， on the WLAN controller for a voice application using Cisco 7921 wireless IP phones， what is thepercentage of RF bandwidth that can be dedicated to the phones？（）A、55 percentB、56 percentC、75 percentD、85 percent
Cisco recommends a decibel referenced to 1 milliwatt signal level for the coverage cell edge at thepredetermined data rate that is needed to support the VoWLAN device and call capacityrequirements. What is that signal level value for Cisco Unified Wireless IP Phones 7920， 7921G， and7925G？（）A、-65 dBmB、-67 dBmC、-69 dBmD、-70 dBm
You have very few Cisco 7920 wireless IP phones on your network， but lots of wireless laptops. Youwant to increase the bandwidth available for the laptops by decreasing the bandwidth reserved forthe Cisco 7920 phones. What is the lowest percentage of voice-allocated bandwidth you can select onthe WLAN controller？（）A、55 percentB、75 percentC、40 percentD、25 percent
What is the recommended radius of a cell for a voice-ready wireless network？（）A、 6 dBmB、 19 dBmC、 5 dBmD、 7 dBm
By default，on the wlan controller for a voice application using cisco 7921 wireless ip phones. what is the percentage of rf bandwidth that can be dedicated to the phones？（）A、75 percentB、85 percentC、56 percentD、55 percent
Which statement best describes the Cisco 2700 Location Appliance collection of location information for wireless devices?（）A、all Wi-Fi devices on the WLAN send directly received signal strength indication （RSSI） information to the Cisco Wireless Location Appliance through SNMPB、an AP collects RSSI information which is forwarded to wireless controllers through LWAPP. Wireless controllers forward aggregated RSSI to the location appliance through SNMPC、the APs collect received signal strength indication （RSSI） information from all Wi-Fi devices and forward the information to the Cisco Wireless Location Appliance through the LWAPPD、the Cisco WLAN controllers bypass the received signal strength indication （RSSI） information from all Wi-Fi devices to the Cisco Wireless Location Appliance through the LWAPP
You have a very few Cisco 7920 wireless IP phones on your network， but lots of wireless laptops.You want to increase the bandwidth available for the laptops by decreasing the bandwidth reserved for the Cisco 7920 phones. What is the lowest percentage of voice-allocated bandwidthyou can select on the WLAN controller？（）A、25 percentB、40 percentC、55 percentD、75 percent
When conducting a wireless voice site survey， which two sizing considerations exist for thecoverage cell？（）A、rogue access point detection in the coverage areaB、multipath issues in the coverage areaC、number of VoWLAN users in the coverage cellD、call capacity requirements of the coverage area
A client wants to improve the wireless coverage on the third floor of their house. The wireless router is located in the basement and there is no easy way to run a cable to the third floor. Which of the following devices should be installed to extend the wireless coverage to cover the entire third floor without running cables?（）A、SwitchB、RouterC、RepeaterD、Bridge
Which of the following is the MOST likely cause of a low wireless signal after an internal wireless adapter on a laptop was replaced?（）A、The wireless card must be calibrated to the laptop.B、The correct preshared encryption key must be installed to boost the signal.C、The MAC address of the new wireless card will have to be added to the WAP to get the full signal.D、The antenna wires for the wireless card were not attached.
A customer has a wireless router installed in their home office. The customer is having issues with signal strength at the opposite end of the house. Which of the following is the BEST option to increase the signal strength?（）A、Install a high gain antenna focused towards the office wall.B、Run CAT5e cable to all of the rooms that have poor signal strength.C、Install a wireless repeater at the far end of the house.D、Install a second wired router in the far end of the house.
单选题What amount of cell overlap ensures smooth roaming for wireless endpoints?（）A5；10%B10；15%C15；20%D20；25%
单选题What will cause wireless voice devices to perform poorly？（）Aaverage signal strength that is greater than -67 dBiBcell overlap of 15 to 20 percentCuneven wireless coverageDabsence of coverage holes
单选题By default， on the WLAN controller for a voice application using Cisco 7921 wireless IP phones， what is thepercentage of RF bandwidth that can be dedicated to the phones？（）A55 percentB56 percentC75 percentD85 percent
单选题By default，on the wlan controller for a voice application using cisco 7921 wireless ip phones. what is the percentage of rf bandwidth that can be dedicated to the phones？（）A75 percentB85 percentC56 percentD55 percent
单选题What is the recommended radius of a cell for a voice-ready wireless network？（）A 6 dBmB 19 dBmC 5 dBmD 7 dBm
单选题What is the minimum recommended access point overlap for voice roaming？（）Aless than 10 percentB10 to 15 percentC15 to 20 percentD25 to 30 percent
多选题What are two design considerations for a WLAN to support voice?（）APacket loss is less than one percent.BSignal strength at cell edge is approximately -67 dBm.CEnd-to-end delay is less than 200 ms.DCell overlap between APs is 50 percent.
单选题Which of the following is the MOST likely cause of a low wireless signal after an internal wireless adapter on a laptop was replaced?（）AThe wireless card must be calibrated to the laptop.BThe correct preshared encryption key must be installed to boost the signal.CThe MAC address of the new wireless card will have to be added to the WAP to get the full signal.DThe antenna wires for the wireless card were not attached.
单选题Cisco recommends a decibel referenced to 1 milliwatt signal level for the coverage cell edge at thepredetermined data rate that is needed to support the VoWLAN device and call capacityrequirements. What is that signal level value for Cisco Unified Wireless IP Phones 7920， 7921G， and7925G？（）A-65 dBmB-67 dBmC-69 dBmD-70 dBm