Explain what is speculative execution?
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What is the non dfs used?
Can you explain textinformat?
Is Namenode machine same as DataNode machine as in terms of hardware in Hadoop?
What are the limitations of Hadoop?
If we want to copy 10 blocks from one machine to another, but another machine can copy only 8.5 blocks, can the blocks be broken at the time of replication?
What sorts of actions does the job tracker process perform?
What is streaming in Hadoop?
What is a Heartbeat in Hadoop?
Clarify what is sqoop in hadoop?
Mention what are the three modes in which hadoop can be run?
What is 'jps'?
Explain the usage of Context Object?
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