Hortonworks HADOOP-PR000007

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Hortonworks HADOOP-PR000007 Exam Syllabus Topics:

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

Question #1
Which process describes the lifecycle of a Mapper?

A. The JobTracker calls the TaskTracker's configure () method, then its map () method and finally its close () method.
B. The JobTracker spawns a new Mapper to process all records in a single file.
C. The TaskTracker spawns a new Mapper to process each key-value pair.
D. The TaskTracker spawns a new Mapper to process all records in a single input split.

Question #2
Given the following Pig commands:

Which one of the following statements is true?

A. The $1 variable represents the first column of data in 'my.log'
B. The $1 variable represents the second column of data in 'my.log'
C. The severe relation is not valid
D. The grouped relation is not valid

Question #3
Which describes how a client reads a file from HDFS?

A. The client contacts the NameNode for the block location(s). The NameNode then queries the
DataNodes for block locations. The DataNodes respond to the NameNode, and the NameNode redirects
the client to the DataNode that holds the requested data block(s). The client then reads the data directly
off the DataNode.
B. The client queries all DataNodes in parallel. The DataNode that contains the requested data responds
directly to the client. The client reads the data directly off the DataNode.
C. The client contacts the NameNode for the block location(s). The NameNode contacts the DataNode
that holds the requested data block. Data is transferred from the DataNode to the NameNode, and then
from the NameNode to the client.
D. The client queries the NameNode for the block location(s). The NameNode returns the block location(s)
to the client. The client reads the data directory off the DataNode(s).

Question #4
You want to Ingest log files Into HDFS, which tool would you use?

A. Sqoop
B. Flume
C. HCatalog
D. Ambari

Question #5
MapReduce v2 (MRv2/YARN) splits which major functions of the JobTracker into separate daemons?
Select two.

A. Managing file system metadata
B. Job scheduling/monitoring
C. Managing tasks
D. Launching tasks
E. Job coordination between the ResourceManager and NodeManager
F. Heath states checks (heartbeats)
G. Resource management
H. MapReduce metric reporting

Solutions: