List out some common problems faced by data analyst?
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What are the important modes of hadoop?
What are the parameters of mappers and reducers?
If the hadoop administrator needs to make a change, which configuration file does he need to change?
How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?
What is Mapper in Hadoop?
What does hadoop-env.sh do?
What is the procedure for namenode recovery?
Have you ever used counters in hadoop?
What is Small File Problem in Hadoop? How can it be resolved?
Is nosql follow relational db model?
Give me examples of unstructured data?
What are the network requirements for hadoop?
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