Hadoop Online Exam - US Data Technologioes

15 Questions | Total Attempts: 34

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Hadoop Online Exam - US Data Technologioes

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Questions and Answers
  • 1. 
    What does commodity Hardware in Hadoop world mean?
    • A. 

      Very cheap hardware

    • B. 

      Industry standard hardware

    • C. 

      Discarded hardware

    • D. 

      Low specifications Industry grade hardware

  • 2. 
    Which one do you like?
    • A. 

      Parsing 5 MB XML file every 5 minutes

    • B. 

      Processing IPL tweet sentiments

    • C. 

      Processing online bank transactions

    • D. 

      both (a) and (c)

  • 3. 
     What is HBase used as?
    • A. 

      Tool for Random and Fast Read/Write operations in Hadoop

    • B. 

      Faster Read only query engine in Hadoop

    • C. 

      MapReduce alternative in Hadoop

    • D. 

      Fast MapReduce layer in Hadoop

  • 4. 
    What is Hive used as?
    • A. 

      Hadoop query engine

    • B. 

      MapReduce wrapper

    • C. 

      Hadoop SQL interface

    • D. 

      All of the above

  • 5. 
     Which of the following are NOT true for Hadoop?
    • A. 

      It’s a tool for OLTP

    • B. 

      It supports structured and unstructured data analysis

    • C. 

      It aims for vertical scaling out/in scenarios

    • D. 

      Both (a) and (c)

  • 6. 
    Hadoop is open source.
    • A. 

      ALWAYS True

    • B. 

      True only for Apache Hadoop

    • C. 

      True only for IBM

    • D. 

      ALWAYS False

  • 7. 
    What is the default HDFS block size?
    • A. 

      32 MB

    • B. 

      45 MB

    • C. 

      128MB

    • D. 

      128KB

  • 8. 
    Which of the following class is responsible for converting inputs to key-value Pairs of Map Reduce
    • A. 

      FileInputFormat

    • B. 

      InputSplit

    • C. 

      RecordReader

    • D. 

      Mapper

  • 9. 
    NameNodes are usually high storage machines in the clusters
    • A. 

      True

    • B. 

      False

  • 10. 
    SaaS stands for:
    • A. 

      Secret alternative accounting  standards

    • B. 

      Short alert activation supplement

    • C. 

      Software as a service

    • D. 

      None of these

  • 11. 
    The HDFS command to create the cut of a file within HDFS?
    • A. 

      cut

    • B. 

      -mv

    • C. 

      move

    • D. 

      MV

    • E. 

      Option 5

  • 12. 
    The HDFS command to create the copy of a file from a local system is which of the following?
    • A. 

      copyFromLocal

    • B. 

      CopyFromLocal

    • C. 

      copyfromlocal

    • D. 

      copylocal

  • 13. 
    Hive also support custom extensions written in :
    • A. 

      C

    • B. 

      C++

    • C. 

      Java

    • D. 

      C#

  • 14. 
     Which of the following are true for Hadoop Pseudo Distributed Mode? 
    • A. 

      It runs on multiple machines

    • B. 

      Runs on multiple machines without  any daemons

    • C. 

      Runs on Single Machine with all daemons

    • D. 

      Runs on Single Machine without all daemons

  • 15. 
    Hadoop was named after?
    • A. 

      Creator Doug Cuttings favorite circus act

    • B. 

      Cuttings high school rock band

    • C. 

      The toy elephant of Cuttings son 

    • D. 

      A sound Cuttings laptop made during Hadoops development

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