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 is bag?

676

What are the different Data Types available in Hive?

702

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

663

What database are supported by Hive?

706

What will happen in case you have not issued the command?

762

What is the difference between Hbase and Hive?

707

What are different Hive commands available for hive and beeline CLI?

725

What is the prerequisite for Apache Hive installation?

721

RLIKE in Hive?

787

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

730

Which companies are mostly using Hive ?

779

What will be the output of cast ('XYZ' as INT)?

687

What is the default maximum dynamic partition that can be created by a mapper reducer? How can you change it?

719

The partition of hive table has been modified to point to a new directory location. Do I have to move the data to the new location or the data will be moved automatically to the new location?

1000

What is Partition table in Hive?

731

Un-Answered Questions { Big Data }

Why is checkpointing important in hadoop?

468

Define Cassandra?

What is 'Key value pair' in HDFS?

962

Why does my insert statement fail?

Explain how you can get exactly once messaging from kafka during data production?

523

What is the default block size in Hadoop 1 and in Hadoop 2? Can it be changed?

1328

It can be possible that a Job has 0 reducers?

965

Define data replication?

How is a keyspace created in cassandra? & What are the parameters used?

What is Interceptor?

109

What is the difference between HDFS and NAS ?

1372

What are the different String functions available in pig?

817

What are the benefits of big data?

524

What is spark used for?

268

What are the advantage of spark?

292

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