フリー問題

問題文

Two units share one published set of addresses. The engineer asks what has to stop arriving before the roles change hands, and which unit ends up answering the shoppers after that. Which reading of the design is accurate?

選択肢

1. The heartbeat message quits arriving over the connection that the pair shares, and the paired side answers the shoppers instead.
2. The heartbeat message quits arriving over the connection that the pair shares, and the standby side answers the shoppers instead.
3. The summary message quits arriving over the connection that the pair shares, and the standby side answers the shoppers instead.
4. The summary message quits arriving over the connection that the pair shares, and the paired side answers the shoppers instead.