What does rack awareness mean?
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How would you check whether your NameNode is working or not?
Which database is used in hadoop?
What is streaming access?
Explain map-only job?
What are the common types of NOSQL data bases ?
What are the core methods of a Reducer?
For using hadoop list the network requirements?
What is TaskTracker?
How job tracker schedules an assignment?
Explain the Single point of Failure in Hadoop?
What is heartbeat in hadoop?
Explain how is data partitioned before it is sent to the reducer if no custom partitioner is defined in hadoop?
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