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

1. In a large MapReduce job with m mappers and n reducers, how many distinct copy operations will there
be in the sort/shuffle phase?

A) m
B) mn (i.e., m to the power of n)
C) mXn (i.e., m multiplied by n)
D) n
E) m+n (i.e., m plus n)

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) Ingest with Flume agents
C) Ingest with Hadoop Streaming
D) Sqoop import
E) HDFS command
F) Pig LOAD command

3. Which one of the following statements regarding the components of YARN is FALSE?

A) The ResourceManager monitors and restarts any failed Containers
B) The ResourceManager is responsible for scheduling and allocating resources
C) A client application submits a YARW job to the ResourceManager
D) A Container executes a specific task as assigned by the ApplicationMaster

4. Given the following Pig command:
logevents = LOAD 'input/my.log' AS (date:chararray, levehstring, code:int, message:string);
Which one of the following statements is true?

A) The logevents relation represents the data from the my.log file, using a tab as the parsing delimiter
B) The logevents relation represents the data from the my.log file, using a comma as the parsing delimiter
C) The statement is not a valid Pig command
D) The first field of logevents must be a properly-formatted date string or table return an error

5. Which HDFS command copies an HDFS file named foo to the local filesystem as localFoo?

A) hadoop fs -Is foo
B) hadoop fs -put foo LocalFoo
C) hadoop -cp foo LocalFoo
D) hadoop fs -get foo LocalFoo

Solutions: