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CCD-333 · Question #12
CCD-333 Question #12: Real Exam Question with Answer & Explanation
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Question
The Hadoop framework provides a mechanism for coping with machine issues such as faulty configuration or impending hardware failure. MapReduce detects that one or a number of machines are performing poorly and starts more copies of a map or reduce task. All the tasks run simultaneously and the task that finish first are used. This is called:
Options
- ACombiner
- BIdentityMapper
- CIdentityReducer
- DDefault Partitioner
- ESpeculative Execution
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