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Free C2090-101 Exam Braindumps
IBM Big Data Engineer Questions 36–40 (page: 9)

Page 9 of 23
PDF with 106 Questions

Which of the following is TRUE about a Resilient Distributed Dataset?

  1. It is always mutable
  2. It is always immutable
  3. It can be configured to be either mutable or immutable
  4. It can be changed from mutable to immutable state during its life cycle

Answer(s): B


Reference:

http://beyondcorner.com/learn-apache-spark/spark-rdd-resilient-distributed-datasets/



When you configure a MapReduce job, the inputs can include:

  1. A single file
  2. Paths to one or more directories
  3. A file pattern (e.g., mypath/*.csv)
  4. All of the above

Answer(s): C



How are insights derived from Big Match moved to an MDM system?

  1. Extract insights from HBase and load into MDM through an API call
  2. Extract insights from Hive and load into MDM using standard tooling
  3. Extract insights from HDFS and load into MDM by stimulating delta load
  4. Extract insights from HBase and load into MDM using standard MDM batch processing tool

Answer(s): C



Which of the following Pig Latin expressions is used to sum a set of numbers in a bag?

  1. X = FOR EACH C -> (group,SUM(a1))
  2. X = FOR EACH C GEN [group, SUM (A.a1)];
  3. X = FOREACH C GENERATE group, SUM (A.a1);
  4. X = FOREACH C GENERATE FLATTEN SUM (A.a1);

Answer(s): C


Reference:

https://github.com/rjurney/Cloud-Stenography/blob/master/CloudStenography/pig-0.3.0/src/docs/ src/documentation/content/xdocs/piglatin.xml



Which of the following statements about MapReduce is true?

  1. MapReduce source programs must be written in Java
  2. The output from MapReduce is one or more files stored in the DFS
  3. MapReduce programs always have four phases: Mapper, Shuffle, Combiner, and Reducer
  4. Intermediate files, sent from Map tasks to Reduce tasks, are replicated with the number of copies equal to the number of Reducers

Answer(s): B



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