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 the difference between CREATE TABLE AND CREATE EXTERNAL TABLE?

748

Explain Hive Thrift server?

736

Differentiate between PigLatin and Hive?

741

How is HCatalog different from Hive?

722

Which java class handles the output record encoding into files which result from Hive queries?

712

What is the significance of the line set hive.mapred.mode = strict;?

868

How to Write a UDF function in Hive?

739

Which java class handles the Input record encoding into files which store the tables in Hive?

781

What is the importance of .hiverc file?

909

When you point a partition of a hive table to a new directory, what happens to the data?

809

What is a generic UDF in the hive?

801

How many types of Tables in Hive?

843

What is the maximum size of string data type supported by Hive?

828

How to add the partition in existing table without the partition table?

754

How do you list all databases whose name starts with p?

744

Un-Answered Questions { Big Data }

What are the other components of ambari that are important for automation and integration?

Explain HCatLoader and HCatStorer APIs?

When to use explode in Hive?

800

Explain Dsstream with reference to Apache Spark

409

How to specify more than one directory as input in the Hadoop MapReduce Program?

780

What are the components of Apache Pig platform?

792

What is the default file format to import data using Apache Sqoop?

Which is the best spark certification?

305

How can you connect an application

1068

Define composite type in Cassandra?

How much Metadata will be created on NameNode in Hadoop?

What do you understand by the term Straggler ?

743

What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?

765

What are the key differences between Pig vs MapReduce?

661

What is a partition in Hive?

956

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