Monday, December 8, 2014

Big Data and Hadoop Interview Questions

 Q: What is Big Data and Why it is useful?

 Q: What is MapReduce?

 Q: What is Hadoop Framework?

 Q. What is JobTracker and its main functions

 Q. What is TaskTracker?

Q. What is Hadoop Streaming?

Q: What are the three modes in which Hadoop can be run?

Q:What is a metadata?

Q: What is a Datanode?

Q: What is a heartbeat in HDFS?

Q: Are Namenode and job tracker on the same host?

Q: What is a block in HDFS?

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