. . . . . . . . can change the maximum number of cells of a column family.
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Hadoop · all questionsDeveloping MapReduce Applications
Developing MapReduce Applications
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
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Point out the correct statement.
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Point out the wrong statement.
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Which of the following parameter is the threshold for the accounting and serialization buffers?
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Which of the following is not a table scope operator?
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The right level of parallelism for maps seems to be around . . . . . . . . maps per-node.
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. . . . . . . . class adds HBase configuration files to its object.
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. . . . . . . . is the main configuration file of HBase.
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. . . . . . . . is a generalization of the facility provided by the MapReduce framework to collect data output by the Mapper or the Reducer.
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HBase uses the . . . . . . . . File System to store its data.
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You can delete a column family from a table using the method . . . . . . . . of HBAseAdmin class.
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. . . . . . . . is percentage of memory relative to the maximum heap size in which map outputs may be retained during the reduce.
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. . . . . . . . is the primary interface for a user to describe a MapReduce job to the Hadoop framework for execution.
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The standard output (stdout) and error (stderr) streams of the task are read by the TaskTracker and logged to . . . . . . . .
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Which of the following is the default Partitioner for Mapreduce?
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The . . . . . . . . class provides the getValue() method to read the values from its instance.
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Users can control which keys (and hence records) go to which Reducer by implementing a custom?
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. . . . . . . . is the primary interface by which user-job interacts with the JobTracker.
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Maximum virtual memory of the launched child-task is specified using . . . . . . . .
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. . . . . . . . is used to filter log files from the output directory listing.
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