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

1. Which one of the following statements describes the relationship between the ResourceManager and the
ApplicationMaster?

A) The ApplicationMaster starts an instance of the ResourceManager within each Container
B) The ApplicationMaster requests resources from the ResourceManager
C) The ApplicationMaster starts a single instance of the ResourceManager
D) The ResourceManager monitors and restarts any failed Containers of the ApplicationMaster

2. Identify the MapReduce v2 (MRv2 / YARN) daemon responsible for launching application containers and
monitoring application resource usage?

A) ApplicationMasterService
B) ApplicationMaster
C) NodeManager
D) ResourceManager
E) TaskTracker
F) JobTracker

3. Which two of the following are true about this trivial Pig program' (choose Two)

A) Pig assumes the contents of myfile are comma delimited
B) The contents of myfile appear on stdout
C) ABC has a schema associated with it
D) myfile is read from the user's home directory in HDFS

4. You have the following key-value pairs as output from your Map task:

A) Six
B) Four
C) One
D) Five
E) Two
F) Three

5. You've written a MapReduce job that will process 500 million input records and generated 500 million
key-value pairs. The data is not uniformly distributed. Your MapReduce job will create a significant
amount of intermediate data that it needs to transfer between mappers and reduces which is a potential
bottleneck. A custom implementation of which interface is most likely to reduce the amount of
intermediate data transferred across the network?

A) WritableComparable
B) InputFormat
C) Writable
D) Partitioner
E) OutputFormat
F) Combiner

Solutions: