Vendor: Hortonworks
Certifications: HDP Certified Developer
Exam Name: Hortonworks Data Platform Certified Developer
Exam Code: HDPCD
Total Questions: 108 Q&As
Last Updated: Aug 07, 2022
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HDPCD Online Practice Questions and Answers
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 = FILTER A BY (zip = = '95102' AND gender = = M");
B. B= FOREACH A BY (gender = = 'M' AND zip = = '95102');
C. B = JOIN A BY (gender = = 'M' AND zip = = '95102');
D. B= GROUP A BY (zip = = '95102' AND gender = = 'M');
Given the following Hive command:
INSERT OVERWRITE TABLE mytable SELECT * FROM myothertable;
Which one of the following statements is true?
A. The contents of myothertable are appended to mytable
B. Any existing data in mytable will be overwritten
C. A new table named mytable is created, and the contents of myothertable are copied into mytable
D. The statement is not a valid Hive command
When is the earliest point at which the reduce method of a given Reducer can be called?
A. As soon as at least one mapper has finished processing its input split.
B. As soon as a mapper has emitted at least one record.
C. Not until all mappers have finished processing all records.
D. It depends on the InputFormat used for the job.
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