2V0-41.23 · Question #14
When configuring OSPF on a Tier-0 Gateway, which three of the following must match in order to establish a neighbor relationship with an upstream router? (Choose three.)
The correct answer is B. Subnet mask C. MTU of the Uplink E. Area ID. MTU of the Uplink: The maximum transmission unit (MTU) of the uplink interface must match the MTU of the upstream router interface. Otherwise, OSPF packets may be fragmented or dropped, causing neighbor adjacency issues. Subnet mask: The subnet mask of the uplink interface must…
Question
When configuring OSPF on a Tier-0 Gateway, which three of the following must match in order to establish a neighbor relationship with an upstream router? (Choose three.)
Options
- AAddress of the neighbor
- BSubnet mask
- CMTU of the Uplink
- DProtocol and Port
- EArea ID
- FNaming convention
How the community answered
(66 responses)- A14% (9)
- B77% (51)
- D3% (2)
- F6% (4)
Explanation
MTU of the Uplink: The maximum transmission unit (MTU) of the uplink interface must match the MTU of the upstream router interface. Otherwise, OSPF packets may be fragmented or dropped, causing neighbor adjacency issues. Subnet mask: The subnet mask of the uplink interface must match the subnet mask of the upstream router interface. Otherwise, OSPF packets may not reach the correct destination or be rejected by the upstream router. Area ID: The area ID of the uplink interface must match the area ID of the upstream router interface. Otherwise, OSPF packets may be ignored or discarded by the upstream router.
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