What is TaskTracker?
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Explain in which directory hadoop is installed?
What is configured in /etc/hosts and what is its role in setting Hadoop cluster?
What is heartbeat in hadoop?
What are the most common InputFormats in Hadoop?
List out some common problems faced by data analyst?
What is Federation?
Explain the core methods of the reducer?
How can you set an arbitrary number of Reducers to be created for a job in Hadoop?
In which location name node sores its metadata and why?
Can we use windows for hadoop?
What is a udf?
What is rack awareness in hadoop?
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