Hortonworks HDP Certified Developer HADOOP-PR000007

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Simulation test system

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

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

2. Which YARN component is responsible for monitoring the success or failure of a Container?

A) NodeManager
B) JobTracker
C) ApplicationMaster
D) ResourceManager

3. Which one of the following statements is false about HCatalog?

A) Designed to be used by other programs such as Pig, Hive and MapReduce
B) Exists as a subproject of Hive
C) Provides a shared schema mechanism
D) Stores HDFS data in a database for performing SQL-like ad-hoc queries

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

A) The values are arbitrary ordered, but multiple runs of the same MapReduce job will always have the
same ordering.
B) The values are arbitrarily ordered, and the ordering may vary from run to run of the same MapReduce
job.
C) Since the values come from mapper outputs, the reducers will receive contiguous sections of sorted
values.
D) The values are in sorted order.

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

Solutions: