Regarding the description of the above output information, which one is wrong?

Question

Options

• AThe route to 2.2.2.7/32 with the next hop being 10.1.3.1 is the optimal route.
• BOSPF calculates cost as 2.2.2.8/32
• CRoutes to 2.2.2.7/32 are injected through the network command.
• DThe Router ID of this device is 192.168.2.2

• A
  74% (32)
• B
  9% (4)
• C
  12% (5)
• D
  5% (2)

Explanation

Option A is the incorrect statement - making it the right answer to "which one is wrong."

In OSPF routing tables (typically shown in Huawei VRP output), the optimal/best route is marked with a specific indicator (such as >). If two routes exist to 2.2.2.7/32, the one via 10.1.3.1 is likely the non-optimal path - the other route has a lower OSPF cost and is selected as preferred. Claiming the 10.1.3.1 next-hop route is optimal directly contradicts what the output shows.

Why the distractors are correct (not wrong):

• B is correct: OSPF does calculate a cost metric for 2.2.2.8/32 based on interface bandwidth (cost = 100 Mbps / interface bandwidth).
• C is correct: A /32 host route like 2.2.2.7/32 advertised within OSPF using the network command is standard behavior - it's not a redistributed external route.
• D is correct: The Router ID 192.168.2.2 would be visible in the OSPF output header or route details, confirming the local device identity.

Memory tip: In "which is WRONG" questions about routing output, focus on route selection logic - the optimal route has the lowest metric/cost, not just any available path. If a question claims a specific next-hop is "optimal," verify it actually has the best cost among all paths to that prefix.

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