Hortonworks Data Platform Certified Developer Exam Practice Test

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Total 108 questions
Question 1

You need to move a file titled ''weblogs'' into HDFS. When you try to copy the file, you can't. You know you have ample space on your DataNodes. Which action should you take to relieve this situation and store more files in HDFS?



Answer : C

Question 2

Analyze each scenario below and indentify which best describes the behavior of the default partitioner?



Answer : D

Question 3

Table metadata in Hive is:



Answer : C

Question 4

In the reducer, the MapReduce API provides you with an iterator over Writable values. What does calling the next () method return?



Answer : C

Question 5

What types of algorithms are difficult to express in MapReduce v1 (MRv1)?



Answer : C

Question 6

In a MapReduce job, the reducer receives all values associated with same key. Which statement best describes the ordering of these values?



Answer : B

Question 7

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?



Answer : C

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Total 108 questions