The Hadoop MapReduce framework spawns one map task for each ___________ generated by the InputFormat for the job.
A) outputsplit
B) inputsplit
C) inputsplitstream
D) all of the mentioned
Correct Answer:
Verified
Q39: Hadoop achieves reliability by replicating the data
Q40: What was Hadoop written in?
A)java (software platform)
B)perl
C)java
Q41: The Hadoop list includes the HBase database,
Q42: The Mapper implementation processes one line at
Q43: Point out the correct statement.
A)mapper maps input
Q45: Users can control which keys (and hence
Q46: Point out the wrong statement.
A)the mapper outputs
Q47: Applications can use the _ to report progress
Q48: The right level of parallelism for maps
Q49: The number of reduces for the job
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