A ________ serves as the master and there is only one NameNode per cluster. - Hadoop Quiz

Hadoop - Quiz(MCQ)

A ________ serves as the master and there is only one NameNode per cluster.

A)

Replication

B)

NameNode

C)

Data Node

D)

Data block

Correct Answer : NameNode

Explanation : All the metadata related to HDFS including the information about data nodes, files stored on HDFS, and Replication, etc. are stored and maintained on the NameNode.

Recently Updated in Hadoop Questions

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

A)

Info Server

B)

Information Server

C)

Data Server

D)

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.

A)

TX

B)

PX

C)

MVS Edition

D)

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.

A)

TX

B)

MVS Edition

C)

Server Edition

D)

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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