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

1. Which one of the following classes would a Pig command use to store data in a table defined in HCatalog?

A) Pig scripts cannot use an HCatalog table
B) org.apache.hcatalog.pig.HCatOutputFormat
C) No special class is needed for a Pig script to store data in an HCatalog table
D) org.apache.hcatalog.pig.HCatStorer

2. 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 MyDriver mapred.job.name=Example input output
B) hadoop setproperty ("mapred.job.name=Example") MyDriver input output
C) hadoop MyDrive -D mapred.job.name=Example input output
D) hadoop setproperty mapred.job.name=Example MyDriver input output
E) hadoop "mapred.job.name=Example" MyDriver input output

3. Given the following Hive commands:

Which one of the following statements Is true?

A) The file mydata.txt is moved to a subfolder of /apps/hive/warehouse
B) The file mydata.txt does not move from Its current location in HDFS
C) The file mydata.txt is copied into Hive's underlying relational database 0.
D) The file mydata.txt is copied to a subfolder of /apps/hive/warehouse

4. Examine the following Hive statements:

Assuming the statements above execute successfully, which one of the following statements is true?

A) The output of each reducer is only the age column
B) Each reducer generates a file sorted by age
C) The SORT BY command causes only one reducer to be used
D) The output is guaranteed to be a single file with all the data sorted by age

5. Identify the MapReduce v2 (MRv2 / YARN) daemon responsible for launching application containers and monitoring application resource usage?

A) JobTracker
B) ApplicationMasterService
C) NodeManager
D) TaskTracker
E) ApplicationMaster
F) ResourceManager

Solutions: