200-301 · Question #1037
Refer to the exhibit. A network engineer started to configure two directly-connected routers as shown. Which command sequence must the engineer configure on R2 so that the two routers become OSPF neig
The correct answer is A. interface GigabitEthernet0/1. To establish an OSPF neighbor adjacency between directly connected routers, the interface must be configured with an IP address and enabled for OSPF within a specific area.
Question
Refer to the exhibit. A network engineer started to configure two directly-connected routers as shown. Which command sequence must the engineer configure on R2 so that the two routers become OSPF neighbors?
Exhibits
Options
- Ainterface GigabitEthernet0/1
- Brouter ospf 1
- Cinterface GigabitEthernet0/1
- Drouter ospf 1
How the community answered
(30 responses)- A83% (25)
- B3% (1)
- C10% (3)
- D3% (1)
Why each option
To establish an OSPF neighbor adjacency between directly connected routers, the interface must be configured with an IP address and enabled for OSPF within a specific area.
To enable OSPF on a router interface and form an adjacency with a directly connected neighbor, the engineer must first enter the specific interface configuration mode using `interface GigabitEthernet0/1`. Within this mode, an IP address must be assigned (if not already present), and OSPF needs to be enabled on the interface using a command like `ip ospf 1 area 0`.
The `router ospf 1` command enters the OSPF routing process configuration mode. While necessary for OSPF, it is typically followed by `network` commands or global OSPF parameters and does not directly configure the interface's IP address or enable OSPF on the interface itself, which might be a prerequisite.
This option is a duplicate of option A.
This option is a duplicate of option B.
Concept tested: OSPF interface-level configuration
Source: https://www.cisco.com/c/en/us/td/docs/ios/iproute_ospf/configuration/guide/irospf.html
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