What is Slot in Hadoop v1? Why was it removed from Hadoop v2?
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Who are ‘Data Scientists’?
How is security achieved in Hadoop?
What is the block size in Hadoop?
What is Erasure Coding in Hadoop?
What daemons run on master nodes?
Mention what is the difference between an rdbms and hadoop?
What are the port numbers of namenode?
What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?
What is the number of default partitioner in hadoop?
Where are Hadoop’s configuration files located?
Explain how jobtracker schedules a task?
What is heartbeat in hadoop?
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