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Free C2090-101 Exam Braindumps
IBM Big Data Engineer Questions 21–25 (page: 6)

Page 6 of 23
PDF with 106 Questions

Which of the following is not a capability of Pig?

  1. Low-latency queries
  2. Schemas are optional
  3. Nested relational data model
  4. A high level abstraction on top of MapReduce

Answer(s): A


Reference:

http://hadooptutorial.info/apache-pig-overview/



Given a file named readme.txt, which command will copy the readme.txt file to the <user> directory on the HDFS?

  1. hadoop fs ­cp readme.txt hdfs://test.ibm.com:9000/<user>
  2. hadoop fs ­cp hdfs://test.ibm.com:9000/<user> readme.txt
  3. hadoop fs ­put readme.txt hdfs://test.ibm.com:9000/<user>
  4. hadoop fs ­put hdfs://test.ibm.com:9000/<user> readme.text

Answer(s): B



Which of the following is the most effective method for improving query performance on large Hive tables?

  1. Indexing
  2. Bucketing
  3. Partitioning
  4. De-normalizing data

Answer(s): B


Reference:

https://dzone.com/articles/how-to-improve-hive-query-performance-with-hadoop



Which one of the following is NOT provided by the SerDe interface?

  1. SerDe interface has to be built using C or C++ language
  2. Allows SQL-style queries across data that is often not appropriate for a relational database
  3. Serializer takes a Java object that Big SQL has been working with, and turns it into a format that BigSQL can write to HDFS
  4. Deserializer interface takes a string or binary representation of a record, and translates it into a Java object that Big SQL can manipulate

Answer(s): A



Which of the following are capabilities of the Apache Spark project?

  1. Large scale machine learning
  2. Large scale graph processing
  3. Live data stream processing
  4. All of the above

Answer(s): B


Reference:

https://spark.apache.org/



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