フリー問題

問題文

A fix applied directly on one switch resolved an incident. Two weeks later the same incident returned on that switch and nobody had touched it. Which cause is most likely here?

選択肢

1. That recurrence comes from isolated core condition within ongoing release qualification.
2. That recurrence comes from inconsistent manual change within ongoing release qualification.
3. That recurrence comes from suppressed proxy reply within ongoing release qualification.
4. That recurrence comes from insufficient uplink capacity within ongoing release qualification.