Which of the following statements about Transformation in Flink is correct? (Multiple choice)

The correct answer is A. You can set the time window through the window B. The Filter operation is to perform a Boolean function on each element D. KeyBy is to group the source data according to the key to ensure that the metadata of the same. See the full explanation below for the reasoning.

Question

Options

AYou can set the time window through the window
BThe Filter operation is to perform a Boolean function on each element
CFlatMap can segment text
DKeyBy is to group the source data according to the key to ensure that the metadata of the same

How the community answered

(51 responses)

A
82% (42)
C
18% (9)

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