What is unstructured data?
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Can hbase run without hadoop?
How to change from su to cloudera?
Explain a simple Map/Reduce problem.
How Mapper is instantiated in a running job?
Can Hadoop be compared to NOSQL database like Cassandra?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
What is the function of NodeManager?
What is a 'block' in HDFS?
What is the purpose of button groups?
Have you ever used Counters in Hadoop. Give us an example scenario?
What is a speculative execution in Apache Hadoop MapReduce?
Explain the hadoop-core configuration?