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what is “ip helper-address”？
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What is the purpose of the inverse ARP?（）A、to map a known DLCI to an IP addressB、to map a known IP address to a MAC addressC、to map known SPID to a MACaddressD、to map a known DLCI to a MAC addressE、to map a known IP address to a SPIDF、to map a known MAC address to an IP address
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When you execute the "ip helper-address" command on a router， which three UDP ports getenabled automatically by default？（）A、53（DNS）B、69（TFTP）C、515（LPR）D、161（SNMP）E、49（TACACS）
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DNS servers provide what service?（）A、they run a spell check on host names to ensure accurate routingB、they map individual hosts to their specific IP addressC、they convert domain names into IP addressD、Given an IP address,they determine the name of the host that is…
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What is the encapsulation format of an MPLS Multicast VPN （MVPN） packer？（）A、IP unicast in IP unicastB、IP multicast in IP anycastC、IP anycast in IP anycastD、IP multicast in IP unicastE、IP multicast in IP multicastF、IP unicast in IP multicast
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What is the proper command to create a DHCP address pool?（）A、ip local-poolB、ip local poolC、ip dhcp local poolD、ip dhcp-local pool
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单选题What can be specified in IP VACLs?（）A
Protocol and IP source onlyB
IP Source, IP Destination and portsC
IP Source OnlyD
IP Destination Only
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单选题What command visualizes the general NetFlow data on the command line?（）A
show ip flow exportB
show ip flow top-talkersC
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单选题What is the encapsulation format of an MPLS Multicast VPN （MVPN） packer？（）A
IP unicast in IP unicastB
IP multicast in IP anycastC
IP anycast in IP anycastD
IP multicast in IP unicastE
IP multicast in IP multicastF
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单选题In what situation would the command ip helper-address be required？（Choose the best answer.）（）A
Only when there is a duplicate IP address caused by a combination of static and dynamic IPaddress allocationsB
On each router that exists between the client and the serverC
Only when a router separates the client from the serverD
Only if the DHCP sever issues a DHCPNAK to the initial requestE
Only when the client is on the same subnet as the serverF
Only when the DHCP pool is out of IP addresses
考题
多选题When you execute the "ip helper-address" command on a router， which three UDP ports getenabled automatically by default？（）A53（DNS）B69（TFTP）C515（LPR）D161（SNMP）E49（TACACS）
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