Free Hortonworks HDPCD Practice Test & Real Exam Questions

Exam Code/Number: HDPCD
Exam Name/Title: Hortonworks Data Platform Certified Developer
Certification Provider: Hortonworks
Corresponding Certification: HDP Certified Developer

Exam Questions: 110
Updated On: May 31, 2026

Question #1

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. Flume

B. mapred

C. Hadoop Streaming

D. Sqoop

E. Oozie

Discussion 0

Correct Answer: C Vote an answer

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Question #2

Which one of the following statements is FALSE regarding the communication between DataNodes and a federation of NameNodes in Hadoop 2.2?

A. Each DataNode registers with all the NameNodes.

B. DataNodes send periodic heartbeats to all the NameNodes.

C. DataNodes send periodic block reports to all the NameNodes.

D. Each DataNode receives commands from one designated master NameNode.

Discussion 0

Correct Answer: D Vote an answer

Question #3

Which one of the following statements describes the relationship between the NodeManager and the ApplicationMaster?

A. The ApplicationMaster starts the NodeManager outside of a Container

B. The NodeManager creates an instance of the ApplicationMaster

C. The ApplicationMaster starts the NodeManager in a Container

D. The NodeManager requests resources from the ApplicationMaster

Discussion 0

Correct Answer: B Vote an answer

Question #4

Consider the following two relations, A and B.

What is the output of the following Pig commands?
X = GROUP A BY S1; DUMP X;

A. Option C

B. Option B

C. Option D

D. Option A

Discussion 0

Correct Answer: C Vote an answer

Question #5

Which one of the following Hive commands uses an HCatalog table named x?

A. SELECT * FROM org.apache.hcatalog.hive.HCatLoader('x');

B. SELECT * FROM x;

C. Hive commands cannot reference an HCatalog table

D. SELECT x.-FROM org.apache.hcatalog.hive.HCatLoader('x');

Discussion 0

Correct Answer: A Vote an answer

Question #6

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

A. DataNode

B. NameNode

C. Metanode

D. NameSpaceManager

Discussion 0

Correct Answer: B Vote an answer

Question #7

Which best describes how TextInputFormat processes input files and line breaks?

A. Input file splits may cross line breaks. A line that crosses file splits is read by the RecordReaders of both splits containing the broken line.

B. The input file is split exactly at the line breaks, so each RecordReader will read a series of complete lines.

C. Input file splits may cross line breaks. A line that crosses file splits is read by the RecordReader of the split that contains the end of the broken line.

D. Input file splits may cross line breaks. A line that crosses file splits is ignored.

E. Input file splits may cross line breaks. A line that crosses file splits is read by the RecordReader of the split that contains the beginning of the broken line.

Discussion 0

Correct Answer: E Vote an answer

Explanation: Only visible for Pass4Leader members. You can sign-up / login (it's free).

Question #8

Which one of the following statements describes a Pig bag. tuple, and map, respectively?

A. Unordered collection of tuples, ordered set of fields, set of key value pairs

B. Ordered collection of maps, ordered collection of bags, and unordered set of key/value pairs

C. Unordered collection of maps, ordered collection of tuples, ordered set of key/value pairs

D. Ordered set of fields, ordered collection of tuples, ordered collection of maps

Discussion 0

Correct Answer: A Vote an answer

Question #9

Analyze each scenario below and indentify which best describes the behavior of the default partitioner?

A. The default partitioner computes the hash of the key and divides that valule modulo the number of reducers. The result determines the reducer assigned to process the key-value pair.

B. The default partitioner computes the hash of the value and takes the mod of that value with the number of reducers. The result determines the reducer assigned to process the key-value pair.

C. The default partitioner implements a round-robin strategy, shuffling the key-value pairs to each reducer in turn. This ensures an event partition of the key space.

D. The default partitioner assigns key-values pairs to reduces based on an internal random number generator.

E. The default partitioner computes the hash of the key. Hash values between specific ranges are associated with different buckets, and each bucket is assigned to a specific reducer.

Discussion 0

Correct Answer: A Vote an answer

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