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HADOOP-PR000007 Dumps

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Vendor: Hortonworks

Certifications: HCAHD

Exam Name: Hortonworks Certified Apache Hadoop 2.0 Developer (Pig and Hive Developer)

Exam Code: HADOOP-PR000007

Total Questions: 108 Q&As ( View Details)

Last Updated: May 19, 2024

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HADOOP-PR000007 Q&A's Detail

Exam Code: HADOOP-PR000007
Total Questions: 108
Single & Multiple Choice 108

HADOOP-PR000007 Online Practice Questions and Answers

Questions 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

Show Answer
Questions 2

Indentify which best defines a SequenceFile?

A. A SequenceFile contains a binary encoding of an arbitrary number of homogeneous Writable objects

B. A SequenceFile contains a binary encoding of an arbitrary number of heterogeneous Writable objects

C. A SequenceFile contains a binary encoding of an arbitrary number of WritableComparable objects, in sorted order.

D. A SequenceFile contains a binary encoding of an arbitrary number key-value pairs. Each key must be the same type. Each value must be the same type.

Show Answer
Questions 3

In a MapReduce job, you want each of your input files processed by a single map task. How do you configure a MapReduce job so that a single map task processes each input file regardless of how many blocks the input file occupies?

A. Increase the parameter that controls minimum split size in the job configuration.

B. Write a custom MapRunner that iterates over all key-value pairs in the entire file.

C. Set the number of mappers equal to the number of input files you want to process.

D. Write a custom FileInputFormat and override the method isSplitable to always return false.

Show Answer
Questions 4

Which YARN component is responsible for monitoring the success or failure of a Container?

A. ResourceManager

B. ApplicationMaster

C. NodeManager

D. JobTracker

Show Answer
Questions 5

Which one of the following statements is true about a Hive-managed table?

A. Records can only be added to the table using the Hive INSERT command.

B. When the table is dropped, the underlying folder in HDFS is deleted.

C. Hive dynamically defines the schema of the table based on the FROM clause of a SELECT query.

D. Hive dynamically defines the schema of the table based on the format of the underlying data.

Show Answer More Questions

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