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

1. 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

2. The Hadoop framework provides a mechanism for coping with machine issues such as faulty configuration or impending hardware failure. MapReduce detects that one or a number of machines are performing poorly and starts more copies of a map or reduce task. All the tasks run simultaneously and the task finish first are used. This is called:

A) Default Partitioner
B) Combine
C) IdentityMapper
D) IdentityReducer
E) Speculative Execution

3. Your cluster's HDFS block size in 64MB. You have directory containing 100 plain text files, each of which is 100MB in size. The InputFormat for your job is TextInputFormat. Determine how many Mappers will run?

A) 100
B) 200
C) 64
D) 640

4. Consider the following two relations, A and B.

A Pig JOIN statement that combined relations A by its first field and B by its second field would produce what output?

A) 2 Jim Chris 2 3 Terry 3 4 Brian 4
B) 2 cherry Jim, Chris 3 orange Terry 4 peach Brian
C) 2 cherry Jim 2 2 cherry Chris 2 3 orange Terry 3 4 peach Brian 4
D) 2 cherry 2 cherry 3 orange 4 peach

5. You want to Ingest log files Into HDFS, which tool would you use?

A) HCatalog
B) Ambari
C) Sqoop
D) Flume

Solutions: