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Hortonworks Apache-Hadoop-Developer Exam Dumps - Actual Questions Answers

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Apache-Hadoop-Developer Questions and Answers

Question # 1

You have a directory named jobdata in HDFS that contains four files: _first.txt, second.txt, .third.txt and #data.txt. How many files will be processed by the FileInputFormat.setInputPaths () command when it's given a path object representing this directory?

A.

Four, all files will be processed

B.

Three, the pound sign is an invalid character for HDFS file names

C.

Two, file names with a leading period or underscore are ignored

D.

None, the directory cannot be named jobdata

E.

One, no special characters can prefix the name of an input file

Question # 2

Indentify the utility that allows you to create and run MapReduce jobs with any executable or script as the mapper and/or the reducer?

A.

Oozie

B.

Sqoop

C.

Flume

D.

Hadoop Streaming

E.

mapred

Question # 3

Which Hadoop component is responsible for managing the distributed file system metadata?

A.

NameNode

B.

Metanode

C.

DataNode

D.

NameSpaceManager

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