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An IP ( ) is a unique number the computer uses to identify itself, and to be identified over a network.
A.address
B.device
C.point
D.data
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考题
单选题Which pseudocolumn could you use to identify a unique row in a Flashback Versions Query？（）A
XIDB
VERSIONS_PKC
VERSIONS_XIDD
VERSIONS_UNIQUE
考题
多选题Which two statements about the DiffServ model are true？（）Aa class can be identified as a single application， multiple applications with similar service needs，or be based on the source or destination IP addressBa drawback of the DiffServ field in the MAC header to mark frames into behavior aggregates （BAs）CDiffServ uses the DiffServ field in the MAC header to mark frames into behaviorDthe DiffServ field occupies the same eight bits of the MAC header that were previously used for the ToS fieldEthe first six high-order bits of the DiffServ field are used to identify the Resource Reservation Protocol （RSVP） valueFthe primary goal of DiffServ is scalability
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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
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Your network consists of a single Active Directory domain.You have a DHCP server that runs Windows Server 2003 Service Pack 2 （SP2）. All client computers run Windows XP Service Pack 3 （SP3）.A user named User1 reports that when she starts her computer， she receives a duplicate address error message.You confirm that her computer is configured as a DHCP client.You need to ensure that User1 receives a unique IP address from the DHCP server. What should you do on the DHCP server？（）A
Reconcile the scope.B
Create a superscope.C
Enable conflict resolution.D
Increase the number of IP addresses available in the scope.
考题
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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