31. . . . . . . . . specifies the number of segments on disk to be merged at the same time. A. mapred.job.shuffle.merge.percent B. mapred.job.reduce.input.buffer.percen C. mapred.inmem.merge.threshold D. io.sort.factor Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
32. The Mapper implementation processes one line at a time via . . . . . . . . method. A. map B. reduce C. mapper D. reducer Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
33. The . . . . . . . . can also be used to distribute both jars and native libraries for use in the map and/or reduce tasks. A. DistributedLog B. DistributedCache C. DistributedJars D. None of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
34. Point out the correct statement. A. You can add a column family to a table using the method addColumn() B. Using alter, you can also create a column family C. Using disable-all, you can truncate a column family D. None of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
35. Map output larger than . . . . . . . . percent of the memory allocated to copying map outputs. A. 10 B. 15 C. 25 D. 35 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
36. Jobs can enable task JVMs to be reused by specifying the job configuration . . . . . . . . A. mapred.job.recycle.jvm.num.tasks B. mapissue.job.reuse.jvm.num.tasks C. mapred.job.reuse.jvm.num.tasks D. all of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
37. Point out the wrong statement. A. The task tracker has local directory to create localized cache and localized job B. The task tracker can define multiple local directories C. The Job tracker cannot define multiple local directories D. None of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
38. Applications can use the . . . . . . . . to report progress and set application-level status messages. A. Partitioner B. OutputSplit C. Reporter D. All of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
39. 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 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
40. Which of the following partitions the key space? A. Partitioner B. Compactor C. Collector D. All of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
