Assuming a large properly configured multi-rack Hadoop cluster, which scenario should not result
in loss of HDFS data assuming the default replication factor settings?
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A.
Ten percent of DataNodes simultaneously fail.
B.
All DataNodes simultaneously fail.
C.
An entire rack fails.
D.
Multiple racks simultaneously fail.
E.
Seventy percent of DataNodes simultaneously fail.
Explanation:
http://stackoverflow.com/questions/12399197/in-a-large-properly-configured-multirack-hadoop-cluster-which-scenarios-will-b
Correct answer is A
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