フリー問題

問題文

A team replaces the binaries of a running installation with a newer release of the same major series and then starts the server on the existing data directory. Which task does the server take care of by itself?

選択肢

1. On that first start the server recreates the user accounts without a separate instruction from the operator.
2. On that first start the server updates the system tables without a separate instruction from the operator.
3. On that first start the server rebuilds the secondary indexes without a separate instruction from the operator.
4. On that first start the server renames the data files without a separate instruction from the operator.