200-301 · Question #552
Refer to the exhibit. Which command configures OSPF on the point-to-point link between routers R1 and R2?
The correct answer is D. network 10.0.0.0 0.0.0.255 area 0. The network command under the OSPF routing process activates OSPF on interfaces whose IP addresses fall within the specified range.
Question
Refer to the exhibit. Which command configures OSPF on the point-to-point link between routers R1 and R2?
Exhibits
Options
- Arouter-id 10.0.0.15
- Bneighbor 10.1.2.0 cost 180
- Cipospf priority 100
- Dnetwork 10.0.0.0 0.0.0.255 area 0
How the community answered
(62 responses)- A11% (7)
- B6% (4)
- C3% (2)
- D79% (49)
Why each option
The `network` command under the OSPF routing process activates OSPF on interfaces whose IP addresses fall within the specified range.
The `router-id` command sets the global OSPF router identifier and is necessary but does not enable OSPF on specific links or interfaces.
The `network 10.0.0.0 0.0.0.255 area 0` command, executed within the `router ospf` configuration mode, enables OSPF on all interfaces whose IP addresses match the `10.0.0.0/24` network (as defined by the wildcard mask `0.0.0.255`) and assigns them to OSPF Area 0, thereby configuring OSPF on the point-to-point link if its address falls within this range.
Concept tested: OSPF network command configuration
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/15-mt/iro-15-mt-book/iro-cfg-ospfv2.html#GUID-E1A334E6-30D4-411B-87CF-E9703E79477B
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