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Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer Sample Questions:

1. What is a SequenceFile?

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

2. 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) Three, the pound sign is an invalid character for HDFS file names
B) One, no special characters can prefix the name of an input file
C) Four, all files will be processed
D) Two, file names with a leading period or underscore are ignored
E) None, the directory cannot be named jobdata

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

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

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

5. Which HDFS command copies an HDFS file named foo to the local filesystem as localFoo?

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

Solutions: