Kvizo pri la Skribebla Interfaco en la Hadoopa org
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Questions and Answers

Which interface is imported in the given Java code?

  • java.io.DataInput
  • java.io.IOException
  • java.io.DataOutput
  • org.apache.hadoop.io.Writable (correct)
  • What is the purpose of the 'Writable' interface?

  • To write data to a file
  • To serialize and deserialize data (correct)
  • To read data from a file
  • To compress data
  • What exceptions may be thrown by the methods in the 'Writable' interface?

  • java.lang.ClassNotFoundException
  • java.lang.IllegalArgumentException
  • java.io.IOException (correct)
  • java.lang.NullPointerException
  • Which compression types are available for the PARQUET format when configuring the fq-import-remote-conf.xml template?

    <p>Snappy, gzip, uncompressed</p> Signup and view all the answers

    What is the default compression type used for Hadoop formats when the fq.output.compressed parameter is set to false or left empty?

    <p>The default compression type specified on Hadoop for the selected format</p> Signup and view all the answers

    What is the purpose of the fq.data.format property in the fq-import-remote-conf.xml template?

    <p>To set the data format for the imported data</p> Signup and view all the answers

    If you want to select the SEQUENCEFILE format, you need to specify the exact class name of the codec which is available on the ______ system.

    <p>Hadoop</p> Signup and view all the answers

    To use compression with the AVRO format, you can select either snappy or ______ as the compression type.

    <p>deflate</p> Signup and view all the answers

    The fq.output.compressed parameter should be set to 'false' or left ______ to use the default compression type for the selected format in Hadoop.

    <p>empty</p> Signup and view all the answers

    Should the fq.data.format property in the fq-import-remote-conf.xml template be set to one of the specified options?

    <p>True</p> Signup and view all the answers

    Is mixed mode of transfer supported when using Hadoop formats?

    <p>False</p> Signup and view all the answers

    Can the default compression type be used for Hadoop formats when the fq.output.compressed parameter is set to false or left empty?

    <p>True</p> Signup and view all the answers

    Is it possible to use compression with the ORC format?

    <p>True</p> Signup and view all the answers

    Is it necessary to specify the exact class name of the codec when using the RCFILE format?

    <p>True</p> Signup and view all the answers

    Can mixed mode of transfer be used when working with Hadoop formats?

    <p>False</p> Signup and view all the answers

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