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Which scenario will go undeselected?

You are running Hadoop cluster with all monitoring facilities properly configured.
Which scenario will go undeselected?

PrepAway - Latest Free Exam Questions & Answers

A.
HDFS is almost full

B.
The NameNode goes down

C.
A DataNode is disconnected from the cluster

D.
Map or reduce tasks that are stuck in an infinite loop

E.
MapReduce jobs are causing excessive memory swaps

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