Top 10 Hadoop Interview Questions for 2023 :

1. What is Avro Serialization in Hadoop?

2. Explain HDFS and its components?

3. What is a Checkpoint Node in Hadoop?

4. What is the purpose of dfsadmin tool?

5. Does Hadoop require RAID?

6. What is an Identity Mapper?

7. What are the various components of Apache HBase?

8. What is the use of Apache Sqoop in Hadoop?

9. What are the Hadoop Pig data types?

10. What are the phases of MapReduce Reducer?

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