Define a metadata?
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What are the important differences between apache and hadoop?
What is the communication channel between client and namenode/datanode?
Can we do online transactions(oltp) using hadoop?
What are the different types of Znodes?
What stored in HDFS?
What is Hadoop serialization?
How to change from su to cloudera?
What are the four characteristics of Big Data?
What is a Combiner?
Define fault tolerance?
Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
What is Distributed Cache?
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