フリー問題

問題文

A very large table is queried by many clients at the same time. A design goal says that deciding which files to read must not become a bottleneck on one central service. Where is that decision carried out?

選択肢

1. The planning work runs in the shared catalog daemon because the tree that describes the table can be read like any other stored file.
2. The planning work runs in the requesting client process because the tree that describes the table can be read like any other stored file.
3. The planning work runs in the storage node agent because the tree that describes the table can be read like any other stored file.
4. The planning work runs in the central lock manager because the tree that describes the table can be read like any other stored file.