Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer - Apache-Hadoop-Developer Exam Questions [2026]

QUESTION NO: 1
You want to perform analysis on a large collection of images. You want to store this data in HDFS and process it with MapReduce but you also want to give your data analysts and data scientists the ability to process the data directly from HDFS with an interpreted high-level programming language like Python. Which format should you use to store this data in HDFS?

A. SequenceFiles B. Avro C. JSON D. CSV E. XML F. HTML

Correct Answer: B

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QUESTION NO: 2
Which HDFS command copies an HDFS file named foo to the local filesystem as localFoo?

A. hadoop fs -Is foo B. hadoop fs -put foo LocalFoo C. hadoop fs -get foo LocalFoo D. hadoop -cp foo LocalFoo

Correct Answer: C

QUESTION NO: 3
Which one of the following classes would a Pig command use to store data in a table defined in HCatalog?

A. org.apache.hcatalog.pig.HCatOutputFormat B. No special class is needed for a Pig script to store data in an HCatalog table C. Pig scripts cannot use an HCatalog table D. org.apache.hcatalog.pig.HCatStorer

Correct Answer: D

QUESTION NO: 4
Which TWO of the following statements are true regarding Hive? Choose 2 answers

A. Is a relational database B. Useful for data analysts familiar with SQL who need to do ad-hoc queries C. Offers real-time queries and row level updates D. Allows you to define a structure for your unstructured Big Data

Correct Answer: B,D

QUESTION NO: 5
To use a lava user-defined function (UDF) with Pig what must you do?

A. Put the JAR file into the user's home folder in HDFS B. Register the JAR file containing the UDF C. Pass arguments to the constructor of UDFs implementation class D. Define an alias to shorten the function name

Correct Answer: B

QUESTION NO: 6
Given the following Hive command:

Which one of the following statements is true?

A. The files in the mydata folder do not move from their current location In HDFS B. The files in the mydata folder are copied to a subfolder of /apps/hlve/warehouse C. The files in the mydata folder are moved to a subfolder of /apps/hive/wa re house D. The files in the mydata folder are copied into Hive's underlying relational database

Correct Answer: A

QUESTION NO: 7
Which one of the following statements is FALSE regarding the communication between DataNodes and a federation of NameNodes in Hadoop 2.0?

A. Each DataNode registers with all the NameNodes. B. DataNodes send periodic heartbeats to all the NameNodes. C. Each DataNode receives commands from one designated master NameNode. D. DataNodes send periodic block reports to all the NameNodes.

Correct Answer: C