Can you define a checkpoint?
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Compare Hadoop and RDBMS?
What does the high availability of a name-node means? How is it accomplished?
Have you ever used counters in hadoop?
Explain what is webdav in hadoop?
Explain small file problem in hadoop
What is the number of default partitioner in hadoop?
According to IBM, what are the three characteristics of Big Data?
How ordering in hdfs is finished?
What is the characteristic of streaming API that makes it flexible run MapReduce jobs in languages like Perl, Ruby, Awk etc.?
Where are hadoop’s configuration files located and list them?
How many maps are there in a particular job?
What is the default replication factor in Hadoop and how will you change it?
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