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

Big Data Interview Questions

Questions Answers Views Company eMail

What do you understand by Data Replication in Cassandra?

1 129

What is the usage of "cqlsh-version" command?

1 171

What is the use of paging cqlsh command in Cassandra?

1 96

What was the design goal of Cassandra?

1 110

Define replication strategy?

1 116

What is the function of consistency cqlsh command in Cassandra?

1 101

What is Cassandra-CQL collection?

1 96

What is CQLSH in Cassandra?

1 112

What are the benefits/ advantages of Cassandra?

1 94

Explain when to use explode in Hive?

1 740

Why do we need buckets?

1 775

What is the difference between Internal Table and External Table in Hive?

1 769

what are the different modes of Hive?

1 750

In Hive, can you overwrite Hadoop MapReduce configuration in Hive?

1 835

Explain how can you change a column data type in Hive?

1 749

Un-Answered Questions { Big Data }

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

What is the latest version of sqoop?

When we are using queries instead of scripting?

782

How job tracker schedules an assignment?

474

What is the roadmap for apache mahout version 1.0?

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

1059

List the advantage of Parquet file in Apache Spark?

479

What is the latest version of spark?

292

How to skip header rows from a table in Hive?

872

How can I delete the above index named index_bonuspay?

777

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

519

How you can contact your client everyday ?

1016

Give me the examples of Columnar database ?

641

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

Where does the data of a Hive table gets stored?

718

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