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Vendor: Hortonworks
Exam Code: HADOOP-PR000007
Exam Name: Hortonworks Certified Apache Hadoop 2.0 Developer (Pig and Hive Developer)
Certification: HCAHD
Total Questions: 108 Q&A
Updated on:
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Identify the MapReduce v2 (MRv2 / YARN) daemon responsible for launching application containers and monitoring application resource usage?
A. ResourceManager
B. NodeManager
C. ApplicationMaster
D. ApplicationMasterService
E. TaskTracker
F. JobTracker
Can you use MapReduce to perform a relational join on two large tables sharing a key? Assume that the two tables are formatted as comma-separated files in HDFS.
A. Yes.
B. Yes, but only if one of the tables fits into memory
C. Yes, so long as both tables fit into memory.
D. No, MapReduce cannot perform relational operations.
E. No, but it can be done with either Pig or Hive.
You want to run Hadoop jobs on your development workstation for testing before you submit them to your production cluster. Which mode of operation in Hadoop allows you to most closely simulate a production cluster while using a single machine?
A. Run all the nodes in your production cluster as virtual machines on your development workstation.
B. Run the hadoop command with the –jt local and the –fs file:///options.
C. Run the DataNode, TaskTracker, NameNode and JobTracker daemons on a single machine.
D. Run simldooop, the Apache open-source software for simulating Hadoop clusters.
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