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 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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