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CCD-333 · Question #31

You need to create a job that does frequency analysis on input data. You will do this by writing a Mapper that uses TextInputForma and splits each value (a line of text from an input file) into…

The correct answer is B. Processor and disk I/O. See the full explanation below for the reasoning.

Question

You need to create a job that does frequency analysis on input data. You will do this by writing a Mapper that uses TextInputForma and splits each value (a line of text from an input file) into individual characters. For each one of these characters, you will emit the character as a key and as IntWritable as the value. Since this will produce proportionally more intermediate data than input data, which resources could you expect to be likely bottlenecks?

Options

  • AProcessor and RAM
  • BProcessor and disk I/O
  • CDisk I/O and network I/O
  • DProcessor and network I/O

How the community answered

(51 responses)
  • A
    6% (3)
  • B
    76% (39)
  • C
    4% (2)
  • D
    14% (7)

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