HADOOP-PR000007Hortonworks Certified Apache Hadoop 2.0 Developer (Pig and Hive Developer)
108 Questions and Answers Experienced specialists selected 108 questions for this exam. All answers are verified to ensure correctness.
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HADOOP-PR000007 Online Practice Questions and Answers
Which two of the following statements are true about Pig's approach toward data? Choose 2 answers
A. Accepts only data that has a key/value pair structure
B. Accepts data whether it has metadata or not
C. Accepts only data that is defined by metadata tables stored in a database
D. Accepts tab-delimited text data only
E. Accepts any data: structured or unstructured
You need to run the same job many times with minor variations. Rather than hardcoding all job configuration options in your drive code, you've decided to have your Driver subclass org.apache.hadoop.conf.Configured and implement the org.apache.hadoop.util.Tool interface.
Indentify which invocation correctly passes.mapred.job.name with a value of Example to Hadoop?
A. hadoop "mapred.job.name=Example" MyDriver input output
B. hadoop MyDriver mapred.job.name=Example input output
C. hadoop MyDrive 璂 mapred.job.name=Example input output
D. hadoop setproperty mapred.job.name=Example MyDriver input output
E. hadoop setproperty ("mapred.job.name=Example") MyDriver input output
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
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