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Hortonworks HADOOP-PR000007 Exam Syllabus Topics:

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

1. Which one of the following statements describes a Pig bag. tuple, and map, respectively?

A) Unordered collection of tuples, ordered set of fields, set of key value pairs
B) Ordered set of fields, ordered collection of tuples, ordered collection of maps
C) Ordered collection of maps, ordered collection of bags, and unordered set of key/value pairs
D) Unordered collection of maps, ordered collection of tuples, ordered set of key/value pairs

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

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

3. You need to create a job that does frequency analysis on input data. You will do this by writing a Mapper
that uses TextInputFormat and splits each value (a line of text from an input file) into individual characters.
For each one of these characters, you will emit the character as a key and an InputWritable as the value.
As this will produce proportionally more intermediate data than input data, which two resources should
you expect to be bottlenecks?

A) Processor and network I/O
B) Disk I/O and network I/O
C) Processor and RAM
D) Processor and disk I/O

4. What is a SequenceFile?

A) A SequenceFile contains a binary encoding of an arbitrary number key-value pairs. Each key must be
the same type. Each value must be same type.
B) A SequenceFile contains a binary encoding of an arbitrary number of heterogeneous writable objects.
C) A SequenceFile contains a binary encoding of an arbitrary number of homogeneous writable objects.
D) A SequenceFile contains a binary encoding of an arbitrary number of WritableComparable objects, in
sorted order.

5. Review the following data and Pig code:

What command to define B would produce the output (M,62,95l02) when invoking the DUMP operator on
B?

A) B= FOREACH A BY (gender = = 'M' AND zip = = '95102');
B) B= GROUP A BY (zip = = '95102' AND gender = = 'M');
C) B = FILTER A BY (zip = = '95102' AND gender = = M");
D) B = JOIN A BY (gender = = 'M' AND zip = = '95102');

Solutions: