フリー問題

問題文

A manufacturing team reads one large table, adds two derived columns, filters out the rows of test devices, and then writes nothing yet. The logs show no tasks at all. At which point will the cluster begin to compute?

選択肢

1. The computation starts when the code reaches the first casting call that can return a result.
2. The computation starts when the code reaches the first collecting action that can return a result.
3. The computation starts when the code reaches the first renaming operation that can return a result.
4. The computation starts when the code reaches the first filtering predicate that can return a result.