What is a Record Reader in hadoop?
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What are the functions of NameNode?
Define a daemon?
What is a checkpoint?
How can we check whether namenode is working or not?
How can you overwrite the replication factors in HDFS?
What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?
What if rack 2 and datanode fails?
Which command is used for the retrieval of the status of daemons running the hadoop cluster?
What is the default block size in hdfs?
Is it necessary to write jobs for hadoop in the java language?
Where is the Mapper Output stored?
How can I install Cloudera VM in my system?
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