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CSE MCQs :: Hadoop MCQs

  1. ________ are a way of encoding structured data in an efficient yet extensible format.
  2. A.
    Thrift
    B.
    Protocol Buffers
    C.
    Avro
    D.
    None of the mentioned

  3. Thrift resolves possible conflicts through _________ of the field.
  4. A.
    Name
    B.
    Static number
    C.
    UID
    D.
    None of the mentioned

  5. ________ instances are encoded using the number of bytes declared in the schema.
  6. A.
    Fixed
    B.
    Enum
    C.
    Unions
    D.
    Maps

  7. ________ permits data written by one system to be efficiently sorted by another system.
  8. A.
    Complex Data type
    B.
    Order
    C.
    Sort Order
    D.
    All of the mentioned

  9. Which of the following is the slowest compression technique ?
  10. A.
    LZO
    B.
    Bzip2
    C.
    Gzip
    D.
    All of the mentioned

  11. Gzip (short for GNU zip) generates compressed files that have a _________ extension.
  12. A.
    .gzip
    B.
    .gz
    C.
    .gzp
    D.
    .g

  13. __________ support storing a copy of data at a particular instant of time.
  14. A.
    Data Image
    B.
    Datanots
    C.
    Snapshots
    D.
    All of the mentioned

  15. Automatic restart and ____________ of the NameNode software to another machine is not supported.
  16. A.
    failover
    B.
    end
    C.
    scalability
    D.
    All of the mentioned

  17. Which of the following format is more compression-aggressive ?
  18. A.
    Partition Compressed
    B.
    Record Compressed
    C.
    Block-Compressed
    D.
    Uncompressed

  19. The ____________ class extends and implements several Hadoop-supplied interfaces.
  20. A.
    AvroReducer
    B.
    Mapper
    C.
    AvroMapper
    D.
    None of the mentioned