IBM C2090-101 Online Practice Questions and Exam Preparation

IBM C2090-101 Online Questions & Answers

• Question 41:

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

  A. A single file
  B. Paths to one or more directories
  C. A file pattern (e.g., mypath/*.csv)
  D. All of the above
  C. A file pattern (e.g., mypath/*.csv)

• Question 42:

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

  A. hadoop fs -cp readme.txt hdfs://test.ibm.com:9000/
  B. hadoop fs -cp hdfs://test.ibm.com:9000/ readme.txt
  C. hadoop fs -put readme.txt hdfs://test.ibm.com:9000/
  D. hadoop fs -put hdfs://test.ibm.com:9000/ readme.text
  B. hadoop fs -cp hdfs://test.ibm.com:9000/ readme.txt

• Question 43:

  Considering the following properties:

  1.

  Automated creation of target database schema and bulk extract and load

  2.

  Real-time replication subscriptions (with CDC)

  3.

  Managed workload for optimized performance of potentially thousands of artifacts

  4.

  Ensured governance around both data access as well as for metadata capture (to support data lineage and impact assessment) Which tool supports all of the above?

  A. Pig
  B. JAQL
  C. Data Click
  D. BigSheets
  A. Pig

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  Reference: http://meta7.forsythe.com/_wss/clients/508/news_feed/20151130202508951.pdf

• Question 44:

  Which of the following is NOT TRUE regarding the Job Control Plane operator?

  A. User-defined checkpoint logic can be coded in the logic section
  B. It must be added to each application that includes a consistent region
  C. It controls the notifications to set of operators that are included in a consistent region
  D. It has no input or output ports and appears as a stand-alone operator in an application graph
  A. User-defined checkpoint logic can be coded in the logic section

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  Reference: https://www.ibm.com/support/knowledgecenter/SSCRJU_4.3.0/com.ibm.streams.dev.doc/doc/jobcontrolplane.html

• Question 45:

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

  A. Large scale machine learning
  B. Large scale graph processing
  C. Live data stream processing
  D. All of the above
  B. Large scale graph processing

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  Reference: https://spark.apache.org/

• Question 46:

  Which of the following is NOT TRUE regarding InfoSphere Streams composite operators that are annotated as consistent regions?

  A. Disconnected subgraphs within the composite participate in the consistent region
  B. The composite operator and the reachability graph of the composite operator participate in a single consistent region
  C. Merging composite operators into a single consistent region can yield unexpected results and is therefore not recommended
  D. Operators outside of the composite may participate in the consistent region if they are within the composite's reachability graph
  C. Merging composite operators into a single consistent region can yield unexpected results and is therefore not recommended

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  Reference: https://www.ibm.com/support/knowledgecenter/SSCRJU_4.0.0/com.ibm.streams.dev.doc/doc/consistentcompositeoperators.html

• Question 47:

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

  A. It is always mutable
  B. It is always immutable
  C. It can be configured to be either mutable or immutable
  D. It can be changed from mutable to immutable state during its life cycle
  B. It is always immutable

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

• Question 48:

  You have social media data in a plain text file. You want to figure out the number of times the word "Watson" is mentioned in it. Which of the following steps will correctly allow you to visualize that data?

  A. Create a master workbook, add a filter sheet, run the workbook, add chart
  B. Create a master workbook, create a child workbook, add a filter sheet, add chart
  C. Create a master workbook, edit the workbook, add a filter sheet, run the workbook, add chart
  D. Create a master workbook, create a child workbook, add a filter sheet, run the workbook, add chart
  C. Create a master workbook, edit the workbook, add a filter sheet, run the workbook, add chart

• Question 49:

  When embedding SPSS models within InfoSphere Streams, what SPSS product must be installed on the same machine with InfoSphere Streams?

  A. SPSS Modeler
  B. SPSS Solution Publisher
  C. SPSS Accelerator for InfoSphere Streams
  D. None, the SPSS software runs remotely to the Streams machine
  B. SPSS Solution Publisher

• Question 50:

  What should you use to run Big SQL queries that require dynamic variables or scheduling?

  A. JSqsh
  B. Eclipse
  C. BigInsights Console
  D. BigInsights Applications
  D. BigInsights Applications

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  Reference: https://www.ibm.com/support/knowledgecenter/SSPT3X_3.0.0/com.ibm.swg.im.infosphere.biginsights.analyze.doc/doc/bigsql_run_queries.html