Hadoop Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Hadoop Interview Questions

Questions Answers Views Company eMail

How Sqoop word came? Sqoop is which type of tool and the main use of sqoop?

What is Sqoop Import Mainframe Tool and its Purpose?

Give the sqoop command to see the content of the job named myjob?

How can you see the list of stored jobs in sqoop metastore?

What are the basic commands in Apache Sqoop and its uses?

How can you avoid importing tables one-by-one when importing a large number of tables from a database?

What is Sqoop Validation?

What is Sqoop Job?

What is the purpose of Sqoop List Tables?

Is it possible to add a parameter while running a saved job?

What is a disadvantage of using –direct parameter for faster data load by sqoop?

How will you update the rows that are already exported?

Difference Between Apache Sqoop vs Flume?

What is the default extension of the files produced from a sqoop import using the –compress parameter?

Where can the metastore database be hosted?

Un-Answered Questions { Hadoop }

Can you explain the common input formats in hadoop?

476

What is the use of Combiner?

929

How to enable recycle bin in hadoop?

710

What is a yaml file in cassandra?

What are the features of presto?

How ordering in hdfs is finished?

395

what is the meaning of broker in Kafka?

499

What is a “Distributed Cache” in Apache Hadoop?

724

How hive can improve performance with orc format tables?

674

On what basis data will be stored on a rack?

1071

Can the name of a view be same as the name of a hive table?

706

Explain what is speculative execution?

388

What is speculative execution in spark?

303

What is IdentityMapper?

934

Explain about catalog configuration?

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