フリー問題

問題文

A new member of a retail analytics team is reading the diagram of a submitted Spark application. One process turns the query into stages, decides which slice of data each worker gets, and collects the progress of every attempt. What is that process called?

選択肢

1. The component that builds the plan and hands out the work is the shared metastore of the application.
2. The component that builds the plan and hands out the work is the assigned executor of the application.
3. The component that builds the plan and hands out the work is the elected leader of the application.
4. The component that builds the plan and hands out the work is the coordinating driver of the application.