单项选择题
A. The distance ospf intra - area 80 inter - area 80 OSPF subcommand
B. T he distance ospf external 80 OSPF subcommand
C. The distance ospf intra - area 180 inter - area 180 OSPF subcommand
D. The distance ospf external 180 OSPF subcommand
单项选择题 A network includes a RIPv2 domain, an EIGRP domain, and an OSPF domain. Each pair of routing domains has multiple routers redistributing routes between the p air of domains. The design requires that the redistribution configuration avoid matching based on prefix/length because of the trouble in maintaining such configurations. Which one of the following tools can be used in all three routing domains to attem pt to prevent domain loops?（）
单项选择题 Which of the following is not true regarding IOS default settings for administrative distance?（）
单项选择题 Router R1 is redistributing between two OSPF processes. Given the configuration shown, which includes all commands in the route map named fred, which of the following answers is true regarding the redistribution into OSPF process 1?（） router ospf 1 redistribute ospf 2 external 2 route - map fred ! route - map fred permit 10 match ip address 1 set metric - type type - 1