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

Big Data Interview Questions

Questions Answers Views Company eMail

How hive can improve performance with orc format tables?

1 777

How to change the column data type in hive? Explain rlike in hive.

1 762

What are the uses of explode hive?

1 780

how can we access the sub directories recursively?

1 854

How do we write our own custom serde?

1 750

Explain the functionality of object-inspector.

1 784

Differentiate between hive and hbase?

1 816

Explain process to access sub directories recursively in hive queries.

1 964

Mention the date data type in hive. Name the hive data type collection.

1 746

What is the local repository and where it is useful while using ambari environment?

1 67

Explain repository in apache ambari?

1 96

Explain the functionalities of the nagios in ambari?

1 73

Can ambari manage multiple clusters and why?

1 59

What is the latest version of ambari that is available in the present market?

In ambari what are the different life cycle commands?

1 47

Un-Answered Questions { Big Data }

Where does the data of a Hive table gets stored?

718

How can you set an arbitrary number of Reducers to be created for a job in Hadoop?

519

Explain how RDDs work with Scala in Spark

355

How you can contact your client everyday ?

1013

Can We Change settings within Hive Session? If Yes, How?

836

What is the latest version of spark?

288

What is the stable version of Hive ?

2673

When to use explode in Hive?

803

What is the function of UNION and SPLIT operators? Give examples?

579

How to skip header rows from a table in Hive?

872

What is the roadmap for apache mahout version 1.0?

Which modes can Hadoop be run in? List a few features for each mode?

517

What is meant by Transformation? Give some examples.

328

What are the different types of tables available in Hive?

745

How can I delete the above index named index_bonuspay?

777

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