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Hadoop · Q173

Best Practices and Optimization of Hadoop

Programming · Hadoop · question 173

Q173

Point out the wrong statement.

A.
The fork and join nodes must be used in pairs
B.
The fork node assumes concurrent execution paths are children of the same fork node
Answer
C.
A join node waits until every concurrent execution path of a previous fork node arrives to it
D.
A fork node splits one path of execution into multiple concurrent paths of execution

Answer: Option B

Solution

Answer: Option B
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