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Explain what is hadoop?
What are the port numbers of task tracker?
What is Identity reducer?
What does the mapred.job.tracker command do?
Explain what is speculative execution?
What is the best practice to deploy the secondary name node?
Define “speculative execution” in hadoop?
How would you restart NameNode?
Explain InputSplit in Hadoop?
Doesn’t google have its very own version of dfs?
When should be hadoop archive create?
What is distributed copy (distcp)?
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