Correct Answer : mapred.job.reduce.input.buffer.percen
Explanation : When the reduce begins, map outputs will be merged to disk until those that remain are under the resource limit this defines.
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.
Correct Answer : TX
Explanation : MVS Edition developed on a Windows or Unix/Linux platform and transferred to the mainframe as compiled mainframe jobs.
Correct Answer : Enterprise Edition
Explanation : DataStage 5 added Sequence Jobs and DataStage 6 added Parallel Jobs via Enterprise Edition.