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

1. You want to run Hadoop jobs on your development workstation for testing before you submit them to your
production cluster. Which mode of operation in Hadoop allows you to most closely simulate a production
cluster while using a single machine?

A) Run all the nodes in your production cluster as virtual machines on your development workstation.
B) Run the DataNode, TaskTracker, NameNode and JobTracker daemons on a single machine.
C) Run simldooop, the Apache open-source software for simulating Hadoop clusters.
D) Run the hadoop command with the -jt local and the -fs file:///options.

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

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

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

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

4. What are the TWO main components of the YARN ResourceManager process? Choose 2 answers

A) Applications Manager
B) Task Tracker
C) Scheduler
D) Job Tracker

5. Assuming default settings, which best describes the order of data provided to a reducer's reduce method:

A) Neither keys nor values are in any predictable order.
B) Both the keys and values passed to a reducer always appear in sorted order.
C) The keys given to a reducer aren't in a predictable order, but the values associated with those keys
always are.
D) The keys given to a reducer are in sorted order but the values associated with each key are in no
predictable order

Solutions: