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Hortonworks-Certified-Apache-Hadoop-2.0-Developer(Pig and Hive Developer) Sample Questions:

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

A) Hive dynamically defines the schema of the table based on the format of the underlying data.
B) Records can only be added to the table using the Hive INSERT command.
C) Hive dynamically defines the schema of the table based on the FROM clause of a SELECT query.
D) When the table is dropped, the underlying folder in HDFS is deleted.

2. You have user profile records in your OLPT database, that you want to join with web logs you have
already ingested into the Hadoop file system. How will you obtain these user records?

A) Ingest with Hadoop Streaming
B) Pig LOAD command
C) Hive LOAD DATA command
D) Ingest with Flume agents
E) Sqoop import
F) HDFS command

3. You are developing a MapReduce job for sales reporting. The mapper will process input keys
representing the year (IntWritable) and input values representing product indentifies (Text).
Indentify what determines the data types used by the Mapper for a given job.

A) The InputFormat used by the job determines the mapper's input key and value types.
B) The mapper-specification.xml file submitted with the job determine the mapper's input key and value
types.
C) The key and value types specified in the JobConf.setMapInputKeyClass and
JobConf.setMapInputValuesClass methods
D) The data types specified in HADOOP_MAP_DATATYPES environment variable

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

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

A) JobTracker
B) NodeManager
C) ApplicationMaster
D) ResourceManager

Solutions: