单项选择题
A network technician is installing a small wireless network. A requirement is that individual users must authenticate using usernames and passwords.
Which of the following technologies would support users authenticating with encrypted usernames and passwords?（）
A.WPA TLS
B.WPA PEAP
C.64-bit WEP
D.128-bit WEP
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Which of the following utilities will produce the results printed below?（） Tracing route to 172.30.0.78 over a maximum of 30 hops . 1 <1 ms <1 ms172.30.0.78
A.tracert
B.ping
C.arp
D.netstat -
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For an enterprise to use one of the reserved private IP address ranges, as best practice they shouldcoordinate with:（）
A.their legal department
B.IANA
C.IEEE
D.their IT department
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单项选择题
A user reports that when the phone rings in their house the wireless on their laptops becomes disconnected. Which of the following BEST describes the issue?（）
A.The cordless phones are plugged into same outlet as the router
B.The cordless phones are 5.8Ghz which interferes with wireless
C.The cordless phones are 2.4Ghz which interferes with wireless
D.The cordless phones are plugged into the RJ-11 jack
