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Hortonworks HADOOP-PR000007 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Data Processing with Pig | - Advanced Pig processing
|
| Data Warehousing with Hive | - HiveQL fundamentals
|
| Hadoop Ecosystem Integration | - HDFS interaction - Data ingestion and ETL workflows - MapReduce basics |
Hortonworks-Certified-Apache-Hadoop-2.0-Developer(Pig and Hive Developer) Sample Questions:
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
2. How are keys and values presented and passed to the reducers during a standard sort and shuffle phase of MapReduce?
A) Keys are presented to a reducer in random order; values for a given key are not sorted.
B) Keys are presented to a reducer in random order; values for a given key are sorted in ascending order.
C) Keys are presented to reducer in sorted order; values for a given key are not sorted.
D) Keys are presented to reducer in sorted order; values for a given key are sorted in ascending order.
3. Which one of the following Hive commands uses an HCatalog table named x?
A) Hive commands cannot reference an HCatalog table
B) SELECT x.-FROM org.apache.hcatalog.hive.HCatLoader('x');
C) SELECT * FROM x;
D) SELECT * FROM org.apache.hcatalog.hive.HCatLoader('x');
4. 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 the DataNode, TaskTracker, NameNode and JobTracker daemons on a single machine.
B) Run simldooop, the Apache open-source software for simulating Hadoop clusters.
C) Run all the nodes in your production cluster as virtual machines on your development workstation.
D) Run the hadoop command with the -jt local and the -fs file:///options.
5. Given the following Pig command:
logevents = LOAD 'input/my.log' AS (date:chararray, levehstring, code:int, message:string);
Which one of the following statements is true?
A) The logevents relation represents the data from the my.log file, using a comma as the parsing delimiter
B) The statement is not a valid Pig command
C) The logevents relation represents the data from the my.log file, using a tab as the parsing delimiter
D) The first field of logevents must be a properly-formatted date string or table return an error
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: C | Question # 3 Answer: D | Question # 4 Answer: A | Question # 5 Answer: C |





