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Hortonworks HADOOP-PR000007 Exam Syllabus Topics:

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

Question 1

You use the hadoop fs -put command to write a 300 MB file using and HDFS block size of 64 MB. Just
after this command has finished writing 200 MB of this file, what would another user see when trying to
access this life?

A. They would see the current of the file through the last completed block.
B. They would see the current state of the file, up to the last bit written by the command.
C. They would see Hadoop throw an ConcurrentFileAccessException when they try to access this file.
D. They would see no content until the whole file written and closed.

Question 2

In a MapReduce job with 500 map tasks, how many map task attempts will there be?

A. Between 500 and 1000.
B. Exactly 500.
C. At least 500.
D. At most 500.
E. It depends on the number of reduces in the job.

Question 3

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

Question 4

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

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

Question 5

Review the following 'data' file and Pig code.

Which one of the following statements is true?

A. The code executes successfully but there is not output because the D relation is empty
B. The output of the dump d command is (M, {(38,95in),(62,95i02)})
C. The Output Of the DUMP D command IS (M,{(M,62.95102),(M,38,95111)})
D. The code does not execute successfully because D is not a valid relation

Solutions: