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Questions and Answers
What is the purpose of the master instance in the MapReduce programming model?
What is the purpose of the master instance in the MapReduce programming model?
- Partitioning the input data and coordinating the Map and Reduce phases (correct)
- Writing the final results to a shared storage server
- Reading the results of the Map phase and merging the partial results
- Storing the results of the processing on the local disks
What is the role of the Reduce instances in the MapReduce programming model?
What is the role of the Reduce instances in the MapReduce programming model?
- Partitioning the input data and coordinating the Map and Reduce phases
- Reading the results of the Map phase and merging the partial results (correct)
- Storing the results of the processing on the local disks
- Writing the final results to a shared storage server
How does the MapReduce programming model handle the processing of input data?
How does the MapReduce programming model handle the processing of input data?
- All instances read and process data segments, storing the results on a shared storage server
- Master instance reads and processes data segments, storing the results locally
- Reduce instances read and process data segments, storing the results locally
- Map instances read and process data segments, storing the results locally (correct)
When does the application using MapReduce terminate?
When does the application using MapReduce terminate?
What inspired the MapReduce programming model?
What inspired the MapReduce programming model?
What is the role of the master instance in the MapReduce programming model?
What is the role of the master instance in the MapReduce programming model?
What do the map instances do in the Map phase of the MapReduce programming model?
What do the map instances do in the Map phase of the MapReduce programming model?
What do the reduce instances do in the Reduce phase of the MapReduce programming model?
What do the reduce instances do in the Reduce phase of the MapReduce programming model?
Where are the results of the processing by map instances stored in the MapReduce programming model?
Where are the results of the processing by map instances stored in the MapReduce programming model?
When does the application using MapReduce terminate?
When does the application using MapReduce terminate?
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