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Hortonworks Apache-Hadoop-Developer Exam Syllabus Topics:

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

1. Which YARN component is responsible for monitoring the success or failure of a Container?

A) JobTracker
B) ResourceManager
C) ApplicationMaster
D) NodeManager

2. To process input key-value pairs, your mapper needs to lead a 512 MB data file in memory. What is the best way to accomplish this?

A) Place the data file in the DistributedCache and read the data into memory in the configure method of the mapper.
B) Place the data file in the DataCache and read the data into memory in the configure method of the mapper.
C) Serialize the data file, insert in it the JobConf object, and read the data into memory in the configure method of the mapper.
D) Place the data file in the DistributedCache and read the data into memory in the map method of the mapper.

3. On a cluster running MapReduce v1 (MRv1), a TaskTracker heartbeats into the JobTracker on your cluster, and alerts the JobTracker it has an open map task slot.
What determines how the JobTracker assigns each map task to a TaskTracker?

A) The location of the InsputSplit to be processed in relation to the location of the node.
B) The amount of free disk space on the TaskTracker node.
C) The number and speed of CPU cores on the TaskTracker node.
D) The average system load on the TaskTracker node over the past fifteen (15) minutes.
E) The amount of RAM installed on the TaskTracker node.

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

5. You have a directory named jobdata in HDFS that contains four files: _first.txt, second.txt, .third.txt and #data.txt. How many files will be processed by the FileInputFormat.setInputPaths () command when it's given a path object representing this directory?

A) Two, file names with a leading period or underscore are ignored
B) One, no special characters can prefix the name of an input file
C) Four, all files will be processed
D) Three, the pound sign is an invalid character for HDFS file names
E) None, the directory cannot be named jobdata

Solutions: