What kind of questions are expected in a Hadoop developer interview?

Question

Can anyone tell me what kind of questions are expected in a Hadoop developer interview?

Answer 1

Here are some basic and popular questions you can expect in a Hadoop developer interview:

• Differences between Hadoop and Spark?
• What are the real-time industry applications of Hadoop?
• What is the difference between Hadoop and other parallel computing systems?
• In what all modes Hadoop can be run?
• Difference between HDFS block and InputSplit.
• What is a distributed cache? What are its benefits?
• Explain NameNode, Checkpoint NameNode, and Backup Node.
• Most common input formats in Hadoop?
• Define DataNode. How does NameNode tackle DataNode failures?
• What are the core methods of a Reducer?

You can check out this blog on Hadoop Interview Questions for more frequently asked questions in an interview with simple and lucid explanations. 

Also, check this video for more information: