フリー問題

問題文

The company turns on live syncing between the hub and the warehouse system that raised a product change. The lead has to say what happens to the way back, and what the word database stands for where the hub names its two kinds of store. Which pair completes the sentence below correctly?

選択肢

1. When the hub keeps systems in step live, the way back to the system that raised the change is allowed with no extra switch, and the word database in that phrase means a disk volume.
2. When the hub keeps systems in step live, the way back to the system that raised the change is avoided with no extra switch, and the word database in that phrase means a disk volume.
3. When the hub keeps systems in step live, the way back to the system that raised the change is allowed with no extra switch, and the word database in that phrase means a user schema.
4. When the hub keeps systems in step live, the way back to the system that raised the change is avoided with no extra switch, and the word database in that phrase means a user schema.