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Hortonworks Apache-Hadoop-Developer Exam Syllabus Topics:

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

Question 1

MapReduce v2 (MRv2/YARN) is designed to address which two issues?

A. Resource pressure on the JobTracker.
B. Standardize on a single MapReduce API.
C. Ability to run frameworks other than MapReduce, such as MPI.
D. HDFS latency.
E. Single point of failure in the NameNode.
F. Reduce complexity of the MapReduce APIs.

Question 2

You have user profile records in your OLPT database, that you want to join with web logs you have already ingested into the Hadoop file system. How will you obtain these user records?

A. Hive LOAD DATA command
B. Pig LOAD command
C. Sqoop import
D. Ingest with Hadoop Streaming
E. HDFS command
F. Ingest with Flume agents

Question 3

Indentify which best defines a SequenceFile?

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

Question 4

You have the following key-value pairs as output from your Map task:
(the, 1) (fox, 1) (faster, 1) (than, 1) (the, 1) (dog, 1)
How many keys will be passed to the Reducer's reduce method?

A. Six
B. Two
C. Four
D. Three
E. One
F. Five

Question 5

Assuming the following Hive query executes successfully:

Which one of the following statements describes the result set?

A. A bigram of the top 80 sentences that contain the substring "you are" in the lines column of the input data A1 table.
B. A trigram of the top 80 sentences that contain "you are" followed by a null space in the lines column of the inputdata table.
C. A frequency distribution of the top 80 words that follow the subsequence "you are" in the lines column of the inputdata table.
D. An 80-value ngram of sentences that contain the words "you" or "are" in the lines column of the inputdata table.

Solutions: