Is Namenode machine same as DataNode machine as in terms of hardware in Hadoop?
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Explain how does hadoop classpath plays a vital role in stopping or starting in hadoop daemons?
What is streaming access?
Is hadoop still in demand?
Can we use windows for hadoop?
Which database is used in hadoop?
If we want to copy 10 blocks from one machine to another, but another machine can copy only 8.5 blocks, can the blocks be broken at the time of replication?
What does hadoop-metrics.properties file do?
How to do ‘map’ and ‘reduce’ works?
Explain the key benefits of using storm for real time processing?
Explain about Hadoop file system and processing framework?
How would you check whether your NameNode is working or not?
List out some common problems faced by data analyst?
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