Computer

Developing Mapreduce Applications MCQs

Practice Developing Mapreduce Applications MCQs for competitive exams.

Developing Mapreduce Applications MCQs

Practice questions from this topic.

During the execution of a streaming job, the names of the . . . . . . . . parameters are transformed.

  1. A. vmap
  2. B. mapvim
  3. C. mapreduce
  4. D. mapred
Report Error

. . . . . . . . communicate with the client and handle data-related operations.

  1. A. Master Server
  2. B. Region Server
  3. C. Htable
  4. D. All of the mentioned
Report Error

The . . . . . . . . executes the Mapper/ Reducer task as a child process in a separate jvm.

  1. A. JobTracker
  2. B. TaskTracker
  3. C. TaskScheduler
  4. D. None of the mentioned
Report Error

. . . . . . . . is used to filter log files from the output directory listing.

  1. A. OutputLog
  2. B. OutputLogFilter
  3. C. DistributedLog
  4. D. DistributedJars
Report Error

Maximum virtual memory of the launched child-task is specified using . . . . . . . .

  1. A. mapv
  2. B. mapred
  3. C. mapvim
  4. D. All of the mentioned
Report Error

. . . . . . . . is the primary interface by which user-job interacts with the JobTracker.

  1. A. JobConf
  2. B. JobClient
  3. C. JobServer
  4. D. All of the mentioned
Report Error

The . . . . . . . . class provides the getValue() method to read the values from its instance.

  1. A. Get
  2. B. Result
  3. C. Put
  4. D. Value
Report Error

Which of the following is the default Partitioner for Mapreduce?

  1. A. MergePartitioner
  2. B. HashedPartitioner
  3. C. HashPartitioner
  4. D. None of the mentioned
Report Error

The standard output (stdout) and error (stderr) streams of the task are read by the TaskTracker and logged to . . . . . . . .

  1. A. ${HADOOP_LOG_DIR}/user
  2. B. ${HADOOP_LOG_DIR}/userlogs
  3. C. ${HADOOP_LOG_DIR}/logs
  4. D. None of the mentioned
Report Error

. . . . . . . . is percentage of memory relative to the maximum heap size in which map outputs may be retained during the reduce.

  1. A. mapred.job.shuffle.merge.percent
  2. B. mapred.job.reduce.input.buffer.percen
  3. C. mapred.inmem.merge.threshold
  4. D. io.sort.factor
Report Error

You can delete a column family from a table using the method . . . . . . . . of HBAseAdmin class.

  1. A. delColumn()
  2. B. removeColumn()
  3. C. deleteColumn()
  4. D. all of the mentioned
Report Error

HBase uses the . . . . . . . . File System to store its data.

  1. A. Hive
  2. B. Imphala
  3. C. Hadoop
  4. D. Scala
Report Error