フリー問題

問題文

After two sites were joined, hosts in two unrelated ranges started receiving each other's broadcasts. Both had used the same label for their own range. Which cause is behind that mixing?

選択肢

1. That mixing comes from summarized advertisement sending from the printed handover administration.
2. That mixing comes from untranslated site number from the printed handover administration.
3. That mixing comes from tunnel interface instantiating from the printed handover administration.
4. That mixing comes from isolated plane member from the printed handover administration.