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

1. MapReduce v2 (MRv2/YARN) splits which major functions of the JobTracker into separate
daemons? Select two.

A) Resource management
B) MapReduce metric reporting
C) Heath states checks (heartbeats)
D) Launching tasks
E) Managing tasks
F) Managing file system metadata
G) Job coordination between the ResourceManager and NodeManager
H) Job scheduling/monitoring

2. To process input key-value pairs, your mapper needs to lead a 512 MB data file in memory. What is the best way to accomplish this?

A) Place the data file in the DistributedCache and read the data into memory in the map method of the mapper.
B) Place the data file in the DataCache and read the data into memory in the configure method of the mapper.
C) Place the data file in the DistributedCache and read the data into memory in the configure method of the mapper.
D) Serialize the data file, insert in it the JobConf object, and read the data into memory in the configure method of the mapper.

3. To use a lava user-defined function (UDF) with Pig what must you do?

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

4. On a cluster running MapReduce v1 (MRv1), a TaskTracker heartbeats into the JobTracker on your cluster, and alerts the JobTracker it has an open map task slot.
What determines how the JobTracker assigns each map task to a TaskTracker?

A) The average system load on the TaskTracker node over the past fifteen (15) minutes.
B) The location of the InsputSplit to be processed in relation to the location of the node.
C) The amount of free disk space on the TaskTracker node.
D) The amount of RAM installed on the TaskTracker node.
E) The number and speed of CPU cores on the TaskTracker node.

5. Which one of the following is NOT a valid Oozie action?

A) pig
B) mrunit
C) hive
D) mapreduce

Solutions: