Hadoop interview questions part 17
Hadoop interview questions part 17
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Total Questions: 20
1. Microsoft .NET Library for Avro provides data serialization for the Microsoft ___________ environment
Correct Answer is : .NET
2. Which of the following benefit is not a feature of HDInsight ?
Correct Answer is : High cost
3. Streaming supports streaming command options as well as _________ command options.
Correct Answer is : generic
4. Point out the correct statement :
Correct Answer is : You can specify any executable as the mapper and/or the reducer
5. Which of the following Hadoop streaming command option parameter is required ?
Correct Answer is : all of the mentioned
6. To set an environment variable in a streaming command use:
Correct Answer is : -cmdenv EXAMPLE_DIR=/home/example/dictionaries/
7. Point out the wrong statement :
Correct Answer is : To use Aggregate, simply specify “-mapper aggregate”
8. The ________ option allows you to copy jars locally to the current working directory of tasks and automatically unjar the files.
Correct Answer is : archives
9. ______________ class allows the Map/Reduce framework to partition the map outputs based on certain key fields, not the whole keys.
Correct Answer is : KeyFieldBasedPartitioner
10. Which of the following class provides a subset of features provided by the Unix/GNU Sort ?
Correct Answer is : KeyFieldBasedComparator
11. Which of the following class is provided by Aggregate package ?
Correct Answer is : Reducer
12. .Hadoop has a library class, org.apache.hadoop.mapred.lib.FieldSelectionMapReduce, that effectively allows you to process text data like the unix ______ utility.
Correct Answer is : Cut
13. Which of the following is a Web search software ?
Correct Answer is : Nutch
14. Point out the correct statement :
Correct Answer is : OFBiz stands for “The Open For Business Project”
15. ___________ defines an open application programming interface for common cloud application services.
Correct Answer is : Nuvem
16. __________ is OData implementation in Java.
Correct Answer is : Onami
17. Point out the wrong statement :
Correct Answer is : Open Climate Workbench is tool for scalable comparison of remote sensing observations
18. ___________ is an open source SQL query engine for Apache HBase
Correct Answer is : Phoenix
19. ___________ provides multiple language implementations of the Advanced Message Queuing Protocol (AMQP)
Correct Answer is : Qpid
20. ___________ is A WEb And SOcial Mashup Engine.
Correct Answer is : Rave
