Explain the common input formats in hadoop?
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What are configuration files in Hadoop?
What are the core methods of a Reducer?
What happen if a datanode loses network connection for a few minutes?
If no custom partitioner is defined in Hadoop then how is data partitioned before it is sent to the reducer?
Is there another way to check whether Namenode is working?
Clarify what webdav is in hadoop?
What are the different modes in which we can configure/install Hadoop?
What are the main features and Characteristics of Hadoop which makes it the most popular and powerful Big Data tool?
How ordering in hdfs is finished?
What do you know about yarn?
What is purpose of RecordWriter in Hadoop?
Which are the three modes in which hadoop can be run?
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