Hadoop Developer Interview Questions

329 hadoop developer interview questions shared by candidates

1. How hadoop works? 2. How Mapreduce works ? 3. How file of 100MB will be stored in Hadoop 4. How I will update data in hive files 5. How to read csv file of 10 gb and store it in database as it is within few seconds
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Senior Developer(Hadoop)

Interviewed at Deutsche Bank

3.8
May 4, 2016

1. How hadoop works? 2. How Mapreduce works ? 3. How file of 100MB will be stored in Hadoop 4. How I will update data in hive files 5. How to read csv file of 10 gb and store it in database as it is within few seconds

What happen in background when we decommission datanode from ambari, what is edge node, HA, If we want to give only read only access to third party application how will you do, capacity planning, how you secure your cluster.
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Hadoop Administrator

Interviewed at PwC

3.7
Jul 3, 2019

What happen in background when we decommission datanode from ambari, what is edge node, HA, If we want to give only read only access to third party application how will you do, capacity planning, how you secure your cluster.

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