What is a task instance in hadoop? Where does it run?
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How do you categorize a big data?
What is inputformat in hadoop?
Define fault tolerance?
What is the difference between a Hadoop and Relational Database and Nosql?
Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?
What are the basic available commands in Hadoop sqoop ?
what is the typical block size of an HDFS block?
What is the heartbeat used for?
What is the meaning of speculative execution in Hadoop? Why is it important?
Explain how input and output data format of the hadoop framework?
How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?
What are the network requirements for using hadoop?
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