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

Big Data Interview Questions

Questions Answers Views Company eMail

Is it possible to change the default location of a managed table?

1 787

What is the difference between the external table and managed table?

1 770

What is Bucketing and Clustering in Hive?

1 739

How to create table in hive for a json input file?

1 876

what is the difference between order by and sort by in Hive?

1 765

How Hive distributes the rows into buckets?

1 861

Why is Hive not suitable for OLTP systems?

1 830

Why do we perform partitioning in Hive?

1 801

Wherever (Different Directory) I run the hive query, it creates new metastore_db, please explain the reason for it?

1 792

What is the difference between local and remote metastore?

1 1158

What are different modes of metastore deployment in Hive?

1 742

Mention what are the type of database does Hive support ?

1 769

What is LazyOutputFormat in MapReduce?

1 742

What is Output Format in MapReduce?

1 758

Explain the features of Apache Spark because of which it is superior to Apache MapReduce?

1 674

Un-Answered Questions { Big Data }

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

521

How you can contact your client everyday ?

1018

What is meant by Transformation? Give some examples.

341

What is the stable version of Hive ?

2677

How to skip header rows from a table in Hive?

875

How can I delete the above index named index_bonuspay?

781

What is the latest version of sqoop?

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

How to set property in apache tajo?

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

1059

When we are using queries instead of scripting?

782

How can you import only a subset of rows from a table?

Give me the examples of Columnar database ?

646

Can free-form SQL queries be used with Sqoop import command? If yes, then how can they be used?

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

525

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