单项选择题

Which one of the following commands can be used to enable AAA authentication to determine if a user canaccess the privilege command level？（）

A.aaa authentication enable method default
B.aaa authentication enable default
C.aaa authentication enable level
D.aaa authentication enable default local

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Which type of firewall is needed to open appropriate UDP ports required for RTP streams？（）

A.Stateful firewall
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单项选择题

For the following statements， which one is perceived as a drawback of implementing Fibre ChannelAuthentication Protocol （FCAP）？（）

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B.It requires the use of netBT as the network protocol
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