What Skills Does a Data Engineer Need?
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Describe the fundamental idea underlying the Apache Hadoop Framework.
Which two messages does NameNode get from DataNode?
As a data engineer, how would you go about creating a new analytical product?
Differentiate between a data engineer and data scientist.
What are the differences between an operational database and a data warehouse?
Can you create more than one table in Hive for the same data file?
Describe how Hive is used in the Hadoop ecosystem.
What role does Apache Hadoop’s distributed cache play?
What occurs if a user submits a new job when NameNode is down?
How do you turn off the HDFS Data Node’s Block Scanner?
List the standard port numbers on which Hadoop’s task tracker, NameNode, and job tracker operate.