Mapr (HP) Hadoop Developer Certification Questions and Answers (Dumps and Practice Questions)

Question : Select correct statement regarding OOZie workflow



1. OOZie can manage non-Map-Reduce jobs like Pig, Hive , Standalone java programs

2. In OOzie , you can use fork and Join to have parallel processing

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4. 1,2

5. 1,2,3


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Question : Select correct statemnet regarding OOZie workflow


1. You can mdify OOZie workflow using its XML

2. OOZie workflow are cyclic

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4. 1,3

5. 1,2

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Question : If you have two Jobs and wants to run one after another, Select code snippet which represent correct one



1. JobClient.runJob(conf1), JobClient.runJob(conf2);

2. JobClient.run(conf1), JobClient.run(conf2);

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4. JobClient.submit(conf1), JobClient.submit(conf2);


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Related Questions

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Question : You can compress sequence file


1. Record Level

2. Block Level

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4. 1,2
5. 1,2,3


Question : Sync Marker in a sequence file are
A. boundaries for records
B. boundaries for blocks
C. boundaries for keys
D. boundaries for input split

1. boundaries for records

2. boundaries for blocks

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4. boundaries for input split


Question : Which statement is true regarding Distributed Cache



1. Once file submitted as a distributed cache , then both Mapper tasks and Reduce task can use it.

2. You can submit maximum two files in a Distributed cache

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4. You can use Distributed Cache files in Mapper only



Question : Select correct statememnt regarding OOZie workflow


1. It is a Client-Server workflow engine for Hadoop ecosystem components

2. It is a Direct Acyclic Graph

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4. 1,2

5. 1,2,3


Question : In a OOZie workflow , we can


1. Control flow node can be start of the workflow

2. Controlflow node can be end of the workflow

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4. 1,2

5. 1,2,3


Question : What is/are wll ways by which job complete?





1. 0

2. 1

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4. 3