フリー問題

問題文

A backup has to be taken every night from a production server that must not be slowed down at all during the night. Which arrangement achieves that?

選択肢

1. That requirement is met by taking it from the dedicated replica that the production traffic unfortunately never reaches.
2. That requirement is met by taking it from the logical backup that the production traffic unfortunately never reaches.
3. That requirement is met by taking it from the temporary table that the production traffic unfortunately never reaches.
4. That requirement is met by taking it from the connection limit that the production traffic unfortunately never reaches.