R1, an ABR between backbone area 0 and area 1, has intra - area routes in area 0 for 10.1.1.0/24,10.1.2.0/24, and 10.1.3.0/24. These routes have metrics of 21, 22, and 23, respectively. An engineer then adds the area 0 r ange 10.1.0.0 255.255.0.0 command under the OSPF process of R1.
Which of the following is true?（）

单项选择题Use the same scenario as the previous question, w ith one changE.Instead of the distribute-list prefix question in command configured on R1,R1s OSPF process has an area 1 filter-list prefix question in commandconfigured. Again assuming that 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

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

A. R1 will not create/flood a type 3 LSA for subnet 10.1.2.0/26 into area 1
B. R1 will not create/flood a Type 3 LSA for subnet 1 0.1.2.0/24 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

A. A Type 3 LSA for 10.2.2.0/24 was filtered by both ABRs
B. A Type 3 LSA for 10.1.2.0/24 was not filtered by both ABRs
C. A Type 3 LSA for 10.1.3.0/24 was not filtered by  at least one ABR
D. A Type 3 LSA for 10.1.1.0/24 filtered by both ABRs

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?（）

A. 1
B. 2
C. 3
D. 4
E. 5
F. 7

多项选择题The following output was taken from Router R3. A scan of R3s configuration shows that no bandwidth commands have been configured in this router. Which of the following answers lists configuration settings could be a part of a configuration tha t results in the following output?（） R3#show ip ospf interface brief Interface PID Area IP Address Mask Cost State Nbrs F C Se0 0 0.2 3 34 10.10.23.3 29 647 P2P 1 1 Se0 0 0.1 3 34 10.10.13.3 29 1000 P2P 1 1 Fa0 0 3 34 10.10.34.3 24 20 BDR 1 1

A. An a uto - cost reference - bandwidth 1000 command in router ospf mode
B. An auto - cost reference - bandwidth 2000 command in router ospf mode
C. An ip ospf cost 1000 interface S0/0/0.1 command in router ospf mode
D. An auto - cost reference - bandwidth 64700 command i n router ospf mode