The number of reduces for the job is set by the user via _________

Hadoop - Quiz(MCQ)

JobConf.setNumTasks(int)

JobConf.setNumMapTasks(int)

Both (A) and (B)

JobConf.setNumReduceTasks(int)

Correct Answer : JobConf.setNumReduceTasks(int)

Explanation : Reducer has 3 primary phases : Shuffle, Sort and Reduce.

Recently Updated in Hadoop Questions

InfoSphere ___________ provides you with the ability to flexibly meet your unique information integration requirements.

Info Server

Information Server

Data Server

All of the above

Correct Answer : Information Server

Explanation : IBM InfoSphere Information Server is a market-leading data integration platform which includes a family of products that enable you to understand, cleanse, monitor, transform, and deliver data.

________ is used for processing complex transactions and messages.

MVS Edition

Server Edition

Correct Answer : TX

Explanation : MVS Edition developed on a Windows or Unix/Linux platform and transferred to the mainframe as compiled mainframe jobs.

__________ is a name given to the version of DataStage that had a parallel processing architecture and parallel ETL jobs.

MVS Edition

Server Edition

Enterprise Edition

Correct Answer : Enterprise Edition

Explanation : DataStage 5 added Sequence Jobs and DataStage 6 added Parallel Jobs via Enterprise Edition.

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Machine Learning

Artificial Intelligence