Q28
How can speculative execution be controlled at the job level in Hadoop?
A.
Set "mapred.map.tasks.speculative.execution" to true
B.
Set "mapred.reduce.tasks.speculative.execution" to true
C.
Use the "mapred.speculative.execution" configuration
AnswerD.
Speculative execution cannot be controlled
Answer: Option C
Solution
Answer: Option C
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