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. R1's 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

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

多项选择题Which of the following LSA types describes topology information that, when changed, requires a router in the same area to perform an SPF calculation?（）

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

单项选择题R1 is internal to area 1, and R2 is internal to area 2. Subnet 10.1.1.0 24 exists in area 2 as a connected subnet off R2. ABR ABR1 connects area 1 to backbone area 0, and ABR2 c onnects area 0 to area 2. Which of the following LSAs must R1 use when calculating R1s best route for 10.1.1.0 24?（）

A. R2's Type 1 LSA
B. Subnet 10.1.1.0/24's Type 2 LSA
C. ABR1's Type 1 LSA in area 0
D. Subnet 10.1.1.0/24's Type 3 LSA in Area 0
E.  Subnet 10.1.1.0/24's Type 3 LSA in Area 1