单项选择题
A.IP addressing design plans so that the network can be appropriately segmented to mitigate potential network threats
B.a list of the customer requirements
C.detailed security device specifications
D.results from pilot network testing
单项选择题 Cat6500（config）# router ospf 1 Cat6500（config-router）# network 0.0.0.0 255.255.255.255 area 0 Cat6500（config-router）# nsf Cat6500（config-router）#end Refer to the exhibit. The configuration is used to enable nonstop forwarding for OSPF on a Catalyst 6500 Series Switch with redundant supervisor engines. The default CEF configuration is unchanged. After testing， user traffic is interrupted and NSF is not operational. What is the most likely reason？ （）
单项选择题 To initiate testing， which port does a Cisco IOS IP SLA source use to send a control message to an IP SLA responder？ （）
多项选择题 WhichtwoitemsbestdescribeaCiscoIOSIPSLAresponder？（）