An OSPF router has three directly connected networks; 10.1.0.0/16, 10.1.1.0/16, and 10.1.2.0/16. Which OSPF network command would advertise only the 10.1.1.0 network to neighbors?
- router(config-router)# network 10.1.0.0 0.0.15.255 area 0
- router(config-router)# network 10.1.1.0 0.0.0.0 area 0
- router(config-router)# network 10.1.1.0 0.0.0.255 area 0
- router(config-router)# network 10.1.1.0 0.0.255.255 area 0
Explanation: To advertise only the 10.1.1.0 network, the wildcard mask used in the network command must match the first 24 bits exactly. An alternative method of configuring this would also be to use the network 10.1.1.0 255.255.255.0 area 0 command.
Exam with this question: 2.7.5 Module Quiz - Single-Area OSPFv2 Configuration
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