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

1. Which HDFS command displays the contents of the file x in the user's HDFS home directory?

A) hadoop fs -cp x
B) hadoop fs -cat x
C) hdfs fs -get x
D) hadoop fs -Is x

2. You have the following key-value pairs as output from your Map task:

A) Six
B) Three
C) Four
D) Five
E) One
F) Two

3. In Hadoop 2.0, which one of the following statements is true about a standby NameNode?
The Standby NameNode:

A) Receives the same block reports as the active NameNode.
B) Communicates directly with the active NameNode to maintain the state of the active NameNode.
C) Processes all client requests and block reports from the appropriate DataNodes.
D) Runs on the same machine and shares the memory of the active NameNode.

4. Which one of the following is NOT a valid Oozie action?

A) mrunit
B) hive
C) mapreduce
D) pig

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

Solutions: