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 t

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单选题

What is the purpose of a network mask?（）

It is used to identify the maximum hop count of a subnetwork.

It is used to identify an IP address as either private or public.

It is used to identify the network to which an IP address belongs.

It is used to identify the total number of bits present in an IP address.

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多选题Which two statements about subnet masks are true?（）AIf a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.BIf a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.CIf a bit is turned on (1), the corresponding bit in the IP address is used for the network prefix.DIf a bit is turned off (0), the corresponding bit in the IP address is used for the network prefix.

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第2题

单选题Which of the following is used to identify active hosts along with their network addresses?（）A Port scanB Ping sweepC IDSD NIPS

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第3题

单选题What is the purpose of a network mask?（）A It is used in conjunction with the wildcard mask to determine the number of hosts on a networkB It is used to define which parts of the IP address are allocated to host addresses and network prefixesC It is used to hide subnets from external networks by masking the subnets with NATD It is used to differentiate a network as a classful network or a classless network

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第4题

单选题Inverse ARP is being used in the TestKing frame relay network. What is the purpose of Inverse ARP?（）A To ma a known IP address to a MAC addressB To map a known DLCI to a MAC addressC To ma a known MAC address to an IP addressD To ma a known DLCI address to a IP addressE To ma a known IP address to a SPID addressF To ma a known SPID address to a MAC address

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第5题

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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第6题

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 Non of the above

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第7题

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 It is used to identify the network to which an IP address belongsD 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 t

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