Describe NameNode.

What happens when Block Scanner finds a faulty data block?

How does schema evolution work?

Can you create more than one table in Hive for the same data file?

What does COSHH stand for?

Explain HDFS’s Block and Block Scanner.

What role does Apache Hadoop’s distributed cache play?

Describe the Snowflake Schema.

Why does Hadoop employ the context object?

Data Engineer Interview Questions