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Hortonworks HADOOP-PR000007 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Hadoop Ecosystem Integration | - HDFS interaction - Data ingestion and ETL workflows - MapReduce basics |
| Data Processing with Pig | - Advanced Pig processing
|
| Data Warehousing with Hive | - HiveQL fundamentals
|
Hortonworks-Certified-Apache-Hadoop-2.0-Developer(Pig and Hive Developer) Sample Questions:
Review the following 'data' file and Pig code.
Which one of the following statements is true?
- A. The output of the dump d command is (M, {(38,95in),(62,95i02)})
- B. The code does not execute successfully because D is not a valid relation
- C. The code executes successfully but there is not output because the D relation is empty
- D. The Output Of the DUMP D command IS (M,{(M,62.95102),(M,38,95111)})
A NameNode in Hadoop 2.0 manages ______________.
- A. No namespaces
- B. A single namespace
- C. Two namespaces: an active namespace and a backup namespace
- D. An arbitrary number of namespaces
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 grouped relation is not valid
- C. The $1 variable represents the second column of data in 'my.log'
- D. The severe relation is not valid
In Hadoop 2.0, which one of the following statements is true about a standby NameNode?
The Standby NameNode:
- A. Receives the same block reports as the active NameNode.
- B. Runs on the same machine and shares the memory of the active NameNode.
- C. Processes all client requests and block reports from the appropriate DataNodes.
- D. Communicates directly with the active NameNode to maintain the state of the active NameNode.
You are developing a MapReduce job for sales reporting. The mapper will process input keys
representing the year (IntWritable) and input values representing product indentifies (Text).
Indentify what determines the data types used by the Mapper for a given job.
- A. The InputFormat used by the job determines the mapper's input key and value types.
- B. The key and value types specified in the JobConf.setMapInputKeyClass and
JobConf.setMapInputValuesClass methods - C. The data types specified in HADOOP_MAP_DATATYPES environment variable
- D. The mapper-specification.xml file submitted with the job determine the mapper's input key and value
types.
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