Regarding the task selection of the capacity scheduler, which of the following statements is correct?

Which of the following options are Huawei Cloud MRS advantages? (Multiple choice)

Which of the following are the functions that Spark can provide? (Multiple choice)

Spark divides the stages according to the dependencies of RDDs. The scheduler starts from the end of the DAG graph and traverses the entire dependency chain in reverse. When it encounters narrow dependencies, it disconnects, and when it encounters wide dependencies, it adds them to the current stage.

Which of the following description of the flink window is wrong? (Multiple choice)