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

1. MapReduce v2 (MRv2/YARN) is designed to address which two issues?

A) HDFS latency.
B) Resource pressure on the JobTracker.
C) Ability to run frameworks other than MapReduce, such as MPI.
D) Reduce complexity of the MapReduce APIs.
E) Standardize on a single MapReduce API.
F) Single point of failure in the NameNode.

2. Which one of the following statements regarding the components of YARN is FALSE?

A) The ResourceManager monitors and restarts any failed Containers
B) A client application submits a YARW job to the ResourceManager
C) A Container executes a specific task as assigned by the ApplicationMaster
D) The ResourceManager is responsible for scheduling and allocating resources

3. Given the following Hive command:
INSERT OVERWRITE TABLE mytable SELECT * FROM myothertable;
Which one of the following statements is true?

A) A new table named mytable is created, and the contents of myothertable are copied into mytable
B) Any existing data in mytable will be overwritten
C) The contents of myothertable are appended to mytable
D) The statement is not a valid Hive command

4. What is the disadvantage of using multiple reducers with the default HashPartitioner and distributing your workload across you cluster?

A) There are no concerns with this approach. It is always advisable to use multiple reduces.
B) By using multiple reducers with the default HashPartitioner, output files may not be in globally sorted order.
C) You will longer be able to take advantage of a Combiner.
D) You will not be able to compress the intermediate data.

5. What does the following command do?
register '/piggyban):/pig-files.jar';

A) Invokes the user-defined functions contained in the jar file
B) Assigns a name to a user-defined function or streaming command
C) Specifies the location of the JAR file containing the user-defined functions
D) Transforms Pig user-defined functions into a format that Hive can accept

Solutions: