Explain what is sqoop in Hadoop ?
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Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
did you maintain the hadoop cluster in-house or used hadoop in the cloud?
Command to format the NameNode?
Explain the features of stand alone (local) mode?
What is the difference between hadoop and other data processing tools?
Which is the best hadoop certification?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
What are different hdfs dfs shell commands to perform copy operation?
What is HDFS Federation?
What are the default configuration files that are used in hadoop?
What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?
What is the problem with HDFS and streaming data like logs
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