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单选题
802.11g wireless signals operating at 24GHz has a maximum line of sight range of which of thefollowing?（）
A
460 feet (140 meters)
B
540 feet (165 meters)
C
560 feet (171 meters)
D
840 feet (256 meters)
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11g wireless signals operating at 24GHz has a maximum line of sight range of which of thefollowing?()
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An administrator receives reports from users in an office that their 802.11g wireless connectivity has been problematic since the installation of the new wireless phone system. At which of the following frequencies are both systems operating at to cause this issue?（）A、2.4GHzB、900MHzC、1.1GHzD、5GHz
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802.11g wireless signals operating at 24GHz has a maximum line of sight range of which of thefollowing?（）A、460 feet (140 meters)B、540 feet (165 meters)C、560 feet (171 meters)D、840 feet (256 meters)
考题
Which of the following wireless standards has a MAXIMUM throughput, by default, of 11Mbps?（）A、802.11gB、802.11aC、802.1nD、802.11b
考题
单选题Which of the following wireless standards has the highest maximum data rate?（）A
802.11nB
802.11bC
802.11aD
802.11g
考题
单选题Wireless components must work together for interoperability and performance. Which standard has specifications that are 2.4 GHz， 54 Mb/s， and a range of 150 feet？（）A
802.11nB
802.11bC
802.11aD
802.11g
考题
多选题Under which three conditions does a client initiate roaming between wireless cells in the Company WLAN？ （）AThe access point has broadcast too many SSIDs.BThe wireless client has missed too many beacons from the access point.CThe maximum data retry count， initiated by the wireless client， is exceeded.DThe wireless client has reduced the data rate.EThe access point has requested client reauthentication.FThe wireless client has missed too many IAPP （Inter Access Point Protocol） updates.
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单选题Wireless has been operating correctly in the campus infrastructure. After the wireless controllers are upgraded from LWAPP to CAPWAP， access points no longer boot and operate normally. What is the most likely issue causing this problem？（）A
VLAN assignmentsB
DHCP option 43C
PoED
ACLE
QoS
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多选题A single 802.11g access point has been configured and installed in the center of a square officE.A few wireless users are experiencing slow performance and drops while most users are operating at peak efficiency. What are three likely causes of this problem? （）Amismatched TKIP encryptionBnull SSIDCcordless phonesDmismatched SSIDEmetal file cabinetsFantenna type or direction
考题
单选题An administrator receives reports from users in an office that their 802.11g wireless connectivity has been problematic since the installation of the new wireless phone system. At which of the following frequencies are both systems operating at to cause this issue?（）A
2.4GHzB
900MHzC
1.1GHzD
5GHz
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