单项选择题
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 allocations
B.On each router that exists between the client and the server
C.Only when a router separates the client from the server
D.Only if the DHCP sever issues a DHCPNAK to the initial request
E.Only when the client is on the same subnet as the server
F.Only when the DHCP pool is out of IP addresses
相关考题
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多项选择题
Whichofthefollowingstatementsaretrueconcerningthecommandipslamonitorrespondertypetcpconnectipaddress10.1.1.1port23？（Chooseallthatapply.）（）
A.The command will initiate a probe with a destination IP address of 10.1.1.1
B.The command is used on the IP SLA responder and the IP SLA source
C.The command will allow only source address 10.1.1.1 to source probes
D.The command will initiate a probe with a destination Telnet port
E.The command is used to make the router a responder
F.The command will initiate a probe with a source port of 23 -
单项选择题
Whichofthefollowingstatementsregardingdocumentationwouldnotbeconsideredahelpfulstepinthetroubleshootingprocess？（）
A.Use the Cisco Auto Configuration tool
B.Use the Cisco Rollback feature
C.Automate documentation
D.Schedule documentation checks
E.Use the Cisco Configuration Archive tool
F.Require documentation prior to a ticket being closed out -
单项选择题
WhichofthefollowingoptionsrepresentsthecorrectsequenceofDHCPmessagesafteraclientinitiallyboots？（）
A.DHCPREQUEST， DHCPOFFER， DHCPDISCOVER， DHCPACK
B.DHCPDISCOVER， DHCPOFER， DHCPREQUEST， DHCPACK
C.DHCPOFFER， DHCPACK， DHCPREQUEST， DHCPDISCOVER
D.DHCPDISCOVER， DHCPREQUEST， DHCPOFFER， DHCPACK
E.DHCPREQUE5T， DHCPDISCOVER， DHCPOFFER， DHCPACK
F.DHCPDISCOVER， DHCPACK， DHCPREQUEST， DHCPOFFER
