Explain what is a sequence file in hadoop?
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How can native libraries be included in yarn jobs?
Give examples of some companies that are using Hadoop structure?
Mention what is rack awareness?
What is distributed copy (distcp)?
What is Rack Awareness? What is its need in Hadoop?
What are the benefits yarn brings in to hadoop?
Are job tracker and task trackers present in separate machines?
What is namenode?
Explain map-only job?
Clarify what jobtracker is in hadoop? What are the activities followed by hadoop?
Explain what is speculative execution?
Which port does SSH work on?
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