单项选择题
A. R1 will not create/flood a type 3 LSA for su bnet 10.1.2.0/26 into area 1
B. R1 will not create/flood a Type 3 LSA for subnet 10.1.2.0/24 into area 1
C. R1 will not have an OSPF route for subnet 10.1.2.0/26 in its IP routing tablE
D. R1 will not have an OSPF route for subnet 10.1.2.0/24 in its IP routing tablE
单项选择题 The following command output was gathered from Router R1, an ABR between areas 0 (backbone) and area 1. In this internetwork, area 0 contains all the subnets of cla ss A network 10.0.0.0. R1s OSPF process has a distribute - list prefix question in command configured. Assuming the subnets listed in the answers actually exist in area 0. Which of the following occurs on router R1?（） R1#sh ip prefix - list ip prefix - list question: 4 entries seq 5 deny 10.1.2.0/24 ge 25 le 27 seq 15 deny 10.2.0.0/16 ge 30 le 30 seq 20 permit 0.0.0.0/0 le 32
单项选择题 Router B1, an internal router in area 1, displays the following output. The only two ABRs connected to area 1 are performing Type 3 LSA filterinG. Which of the following answers is true based on the information in the output from B1?（） R1# show ip route 10.1.0.0 255.255.0.0 longer - prefixes ! Legend lines omitted for brevity 10.0.0.0/8 is variably subnetted, 17 subnets, 3 masks O 10.1.2.0/24 [110/658] via 10.10.13.1, 00:00:32, Serial0/0/0.1 O IA 10.1.1.0/24 [110/658] via 10.10.23.2, 00:41:39, Ser ial0/0/0.2 O IA 10.1.3.0/24 [110/658] via 10.10.23.2, 00:41:39, Serial0/0/0.2
多项选择题 Which of the following LSA types describe information related to topology or subnets useful for calculating routes for subnets inside the OSPF domain?（）