"제 질문은 대답됐어요."
Translation:My question was answered.
DLG's aim here is to show how some of the active -하다 verbs can be turned passive by simply switching 하다 to 되다.
대답하다- answer (active verb)
대답되다 - be/get answered (passive verb)
There is nothing grammatically wrong with the sentence:
내 질문은 대답됐어요 - My question has been answered
- Synonym 응답되다