Which of the following switches in Windows can be used to ping a host until stopped?（）

A technician installs a local web server which is not accessible from the network. Which of the following is the local IP address that the web server should be using on the loopback adapter?（）

A.127.0.0.1
B.172.31.146.1
C.192.168.1.1
D.10.1.1.1

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Which of the following is a graphical enhancement in Windows Vista?（）

A.UAC
B.BitLocker
C.SFC
D.Aero

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