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Hortonworks HDPCD Exam With Confidence Using Practice Dumps

Exam Code:
HDPCD
Exam Name:
Hortonworks Data Platform Certified Developer
Vendor:
Questions:
108
Last Updated:
Jun 16, 2025
Exam Status:
Stable
Hortonworks HDPCD

HDPCD: Hortonworks Other Certification Exam 2025 Study Guide Pdf and Test Engine

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Hortonworks Data Platform Certified Developer Questions and Answers

Question 1

Which one of the following files is required in every Oozie Workflow application?

Options:

A.

job.properties

B.

Config-default.xml

C.

Workflow.xml

D.

Oozie.xml

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Question 2

When can a reduce class also serve as a combiner without affecting the output of a MapReduce program?

Options:

A.

When the types of the reduce operation’s input key and input value match the types of the reducer’s output key and output value and when the reduce operation is both communicative and associative.

B.

When the signature of the reduce method matches the signature of the combine method.

C.

Always. Code can be reused in Java since it is a polymorphic object-oriented programming language.

D.

Always. The point of a combiner is to serve as a mini-reducer directly after the map phase to increase performance.

E.

Never. Combiners and reducers must be implemented separately because they serve different purposes.

Question 3

You have just executed a MapReduce job. Where is intermediate data written to after being emitted from the Mapper’s map method?

Options:

A.

Intermediate data in streamed across the network from Mapper to the Reduce and is never written to disk.

B.

Into in-memory buffers on the TaskTracker node running the Mapper that spill over and are written into HDFS.

C.

Into in-memory buffers that spill over to the local file system of the TaskTracker node running the Mapper.

D.

Into in-memory buffers that spill over to the local file system (outside HDFS) of the TaskTracker node running the Reducer

E.

Into in-memory buffers on the TaskTracker node running the Reducer that spill over and are written into HDFS.