题目内容：
A.225.0.0.1B.254.254.0.0
C.256.0.0.4
D.224.2.1.4
参考答案：
选择题：Which of the following is an invalid IPv4 address?()
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An administrator needs to update a router configuration for a router that does not support SSH.Which of the following can be used to securely update the router configuration?()
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1933年,波音公司推出了世界上第一架现代化客机是( )A.B－247B.DC－3C.B－237D.B－747
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After a technician installs a video card, which of the following should the technician configure NEXT?()
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