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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

Your cluster's HDFS block size in 64MB. You have directory containing 100 plain text files, each of which
is 100MB in size. The InputFormat for your job is TextInputFormat. Determine how many Mappers will
run?

A. 640
B. 200
C. 100
D. 64

Question 2

Given a directory of files with the following structure:
line number, tab character, string:
Example:
1 abialkjfjkaoasdfjksdlkjhqweroij
2 kadfjhuwqounahagtnbvaswslmnbfgy
3 kjfteiomndscxeqalkzhtopedkfsikj
You want to send each line as one record to your Mapper. Which InputFormat should you use to complete
the line: conf.setInputFormat (____.class) ; ?

A. SequenceFileAsTextInputFormat
B. BDBInputFormat
C. KeyValueFileInputFormat
D. SequenceFileInputFormat

Question 3

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

Question 4

Which one of the following statements is false about HCatalog?

A. Stores HDFS data in a database for performing SQL-like ad-hoc queries
B. Exists as a subproject of Hive
C. Designed to be used by other programs such as Pig, Hive and MapReduce
D. Provides a shared schema mechanism

Question 5

A NameNode in Hadoop 2.0 manages ______________.

A. No namespaces
B. Two namespaces: an active namespace and a backup namespace
C. An arbitrary number of namespaces
D. A single namespace

Solutions: