Point out the wrong statement.
A. DoFns also have a number of helper methods for working with Hadoop Counters, all named increment
B. The Crunch APIs contain a number of useful subclasses of DoFn that handle common data processing scenarios and are easier to write and test
C. FilterFn class defines a single abstract method
D. None of the mentioned
Answer: Option D
This Question Belongs to Hadoop >> Realtime Processing With Apache Spark
What is Oozie in the context of Hadoop?
A. A workflow scheduler for Hadoop jobs
B. A distributed storage system
C. A query language for Hadoop
D. A data processing engine for Hadoop
In Oozie, what is the primary purpose of a coordinator?
A. Perform data analytics in Hadoop
B. Execute MapReduce jobs
C. Manage computation resources
D. Define and manage recurrent workflows
What is an Oozie Bundle in the context of workflow automation?
A. A storage format in Hadoop
B. A query language for Hadoop
C. A collection of coordinated workflows
D. A distributed file system
In Oozie, what does the term "action" refer to?
A. A query language for Hadoop
B. A unit of work in a workflow
C. A distributed file system
D. None of the above
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