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Each machine in the internet is assigned a unique network address，called （ ） ，that is used to identify the machine for communication purposes.
A.MAC address
B.IP address
C.host address
D.domain name address
B.IP address
C.host address
D.domain name address
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参考解析
解析：在互联网上的每个计算机都被分配了一个IP地址，这个地址是用来和其他计算机通信的。 A．MAC地址 B．IP地址 C．主机地址 D．域名地址
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单选题In any NAT (network address translation) configuration, what is the Inside Global IP address?（）A
The summarized address for all internal subnetted addresses.B
A private IP address assigned to a host on the inside network.C
A registered address that represents an inside host to an outside network.D
A unique IP address used on an internal networkE
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单选题What does the "Inside Global" address represent in the configuration of NAT（）。A
the summarized address for all of the internal subnetted addressesB
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a globally unique, private IP address assigned to a host on the inside networkD
a registered address that represents an inside host to an outside network
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单选题A machine must have the most direct access possible to two different networks. However， it cannot act as a router between the networks. Which of the following arrangements is most appropriate to facilitate the machine’s accessibility？（）A
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单选题What is the purpose of a network mask?（）A
It is used to identify the maximum hop count of a subnetworkB
It is used to identify an IP address as either private or publicC
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It is used to identify the total number of bits present in an IP address
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单选题What is the purpose of a network mask?（）A
It is used to identify the maximum hop count of a subnetwork.B
It is used to identify an IP address as either private or public.C
It is used to identify the network to which an IP address belongs.D
It is used to identify the total number of bits present in an IP address.
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